SCHEDULE 14A
                                 (RULE 14A-101)

                     INFORMATION REQUIRED IN PROXY STATEMENT

                            SCHEDULE 14A INFORMATION
 PROXY STATEMENT PURSUANT TO SECTION 14(A)OF THE SECURITIES EXCHANGE ACT OF 1934

Filed by the Registrant    /   /
Filed by a Party other than the Registrant    /x/

Check the appropriate box:
/ / Preliminary Proxy Statement  / / Confidential, for the use of the Commission
                                     only (as permitted by Rule 14a-6(e)(2))

/ X  /    Definitive Proxy Statement
/   /     Definitive Additional Materials

/   /    Soliciting Material Pursuant to Rule 14a-12

                              COHOES BANCORP, INC.

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                (Name of Registrant As Specified In Its Charter)

                              TRUSTCO BANK CORP NY
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    (Name of Person(s) Filing Proxy Statement, if other than the Registrant)

Payment of Filing Fee (Check the appropriate box): /x/ No fee required.
/  /    Fee computed on table below per Exchange Act Rules 14a-6(i)(1) and 0-11.
1)       Title of each class of securities to which transaction applies:


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2)       Aggregate number of securities to which transaction applies:


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3)       Per unit price or other  underlying  value of  transaction  computed
         pursuant to Exchange Act  Rule 0-11: (set forth the amount on which the
         filing fee is calculated and state how it was determined):


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4)       Proposed maximum aggregate value of transaction:


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5)       Total fee paid:


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/ / Fee paid previously with preliminary materials.



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/        / Check box if any part of the fee is offset as  provided  by  Exchange
         act Rule  0-11(a)(2)  and identify the filing for which the  offsetting
         fee was paid  previously.  Identify the previous filing by registration
         statement number, or the form or schedule and the date of its filing.

1)       Amount previously paid:


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2)       Form, Schedule or Registration Statement No.


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3)       Filing party:


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4)       Date filed:


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                                 [TRUSTCO LOGO]



                                                                  July 31, 2000
Dear Cohoes Stockholder:

         AS YOU KNOW,  ON JUNE 26,  2000,  TRUSTCO  BANK CORP NY  ANNOUNCED  ITS
INTENTION  TO COMMENCE A TENDER  OFFER TO  EXCHANGE  EACH  OUTSTANDING  SHARE OF
COHOES  BANCORP,  INC.  COMMON STOCK FOR SHARES OF TRUSTCO COMMON STOCK EQUAL IN
VALUE TO $16.00. We are also seeking, in connection with the consummation of our
exchange offer, to enter into an agreement with Cohoes providing for a follow-up
merger  between  Cohoes and TrustCo or a wholly owned  subsidiary  of TrustCo in
which each  remaining  Cohoes  common share would be exchanged  for the same per
share consideration paid to Cohoes stockholders in the exchange offer. Our offer
will be made by a  prospectus  and  letter of  transmittal  which will be mailed
separately to you. You should read the prospectus  carefully because it contains
important information concerning the terms and conditions of our offer.

         As you know,  Cohoes has entered into a merger agreement with Hudson in
which Hudson will be the surviving  corporation  in the merger.  In the proposed
merger with  Hudson,  each  outstanding  share of Cohoes  common  stock would be
converted  into  1.185  shares of  Hudson  common  stock.  The  Cohoes  Board of
Directors is soliciting your vote to approve its proposed merger with Hudson. AS
DISCUSSED IN THE ACCOMPANYING PROXY STATEMENT,  WE BELIEVE OUR PROPOSED EXCHANGE
OFFER AND FOLLOW-UP  MERGER WILL PROVIDE YOU A  SIGNIFICANT  PREMIUM AND GREATER
VALUE THAN THE PROPOSED  HUDSON MERGER.  OUR OFFER HAS A VALUE OF  APPROXIMATELY
$127,000,000  WHILE THE  PROPOSED  HUDSON  MERGER  WAS  VALUED AT  APPROXIMATELY
$89,000,000  --  $38,000,000  LESS -- TO  COHOES  SHAREHOLDERS  AT THE  TIME THE
PROPOSED HUDSON MERGER WAS ANNOUNCED.


         In connection with the proposed  Hudson merger,  Cohoes has scheduled a
special  meeting  of  stockholders  to be held on  August  17,  2000.  If Cohoes
stockholders  reject the  proposed  Hudson  merger at such special  meeting,  we
believe your board of directors  should respect that vote and take all necessary
action to allow our offer to proceed.

         WE URGE YOU TO VOTE AGAINST THE PROPOSED HUDSON MERGER BECAUSE:

          o    Our offer provides a significant  premium and more value for your
               Cohoes shares than the proposed  Hudson merger.  Based on average
               closing  prices for Hudson  common stock over the 20 trading days
               before we made our June 8, 2000  merger  proposal  to the  Cohoes
               board of directors, the value of our offer represented an average
               premium  of more than 42% over the  implied  value of the  Hudson
               merger over that 20 day  period.  Because the number of shares of
               Hudson  common stock that you would  receive in the Hudson merger
               is fixed,  the  implied  value of the Hudson  merger  will change
               based on changes in the market prices of the Hudson stock,  while
               the value of our offer will  remain  fixed at $16.00 per share of
               Cohoes  stock.  The number of shares of TrustCo  common stock you
               would  receive  under our offer will be determined by the average
               closing  price of the  TrustCo  stock on the Nasdaq  over  20-day
               period  ending five days  before the  closing on our offer.  As a
               result, the value of the actual number of shares of TrustCo stock
               you receive may be worth more or less than  $16.00  depending  on
               the value of TrustCo stock on the closing date as compared to the
               average  value used to determine  the number of shares of TrustCo
               stock you will recieve.



          o    Our  offer is  valued  higher.  The  total  value of our offer is
               approximately   $127,000,000.   The  value   offered   to  Cohoes
               shareholders   under  the   Hudson   merger   was   approximately
               $89,000,000 at the time the Hudson merger was announced. Based on
               July 13, 2000 closing  prices on the Nasdaq,  TrustCo's  offer of
               $16.00 of TrustCo's common stock per share of Cohoes common stock
               represented  a 17% premium over the implied value of the proposed
               Hudson merger of $13.70  (based on the 1.185 to 1 exchange  ratio
               in that  transaction  and the  $11.5625  closing  price of Hudson
               commom stock). TrustCo believes that the increase in the price of
               Hudson  common stock is  attributable  primarily to the effect of
               the  announcement  of  TrustCo's  offer  upon the market for that
               stock.  The  actual  value of our offer and the  proposed  Hudson
               merger may differ from the values  described above based upon the
               current market value of TrustCo stock or Hudson stock.

          o    Our offer represents a significant  increase in cash dividends to
               Cohoes  shareholders  based on historical  practices.  Currently,
               Cohoes  shareholders  receive cash dividends at a rate of $0.28 a
               year for each  Cohoes  share.  Under  TrustCo's  offer,  the cash
               dividends  payable on each Cohoes share would be $0.78 a year, an
               increase of 179%.  Because the actual number of shares of TrustCo
               stock  that you will  receive  is not yet  fixed,  the  estimated
               amount of cash dividends you will receive will fluctuate with the
               value of TrustCo stock.  Assuming, as provided by the terms of
               of the Hudson/Cohoes merger agreement, that Hudson's dividend
               rate would increase to $0.24 per year, Cohoes stockholders would
               continue to receive dividends at a rate of $0.28 per year.
               To  maintain  present  dividend  levels, TrustCo will be required
               to distribute more than 90%  of the pro  forma  net  income  for
               TrustCo  and  Cohoes  ( without taking  into  consideration  the
               estimated $9.0 million in cost savings TrustCo expects to achieve
               within the next two years).  TrustCo  currently  distributes
               approimately  79% of its net  income  in the form of  cash
               dividends.  Although  TrustCo believes that, upon completion
               of its  proposed  acquisition  of Cohoes (as well as the proposed
               acquisition  of Hudson,  which is described  in the  accompanying
               proxy  statement), it will have the  resources to continue to pay
               dividends consistent with its past practices, the declaration and
               payment of dividends is within the discretion of TrustCo's  board
               of directors,  and, to the extent TrustCo's board determines that
               the  payment of such  dividends  may have an adverse  effect upon
               TrustCo's  growth   potential,   level  of  customer  service  or
               financial  condition,  the  board may  decide to reduce  dividend
               payment rates.

          o    One of the  conditions of our offer is that the Hudson merger NOT
               be approved by the stockholders of Cohoes.  As a result,  for you
               to have an  opportunity  to exchange  your Cohoes  shares for the
               consideration  offered in our offer,  the proposed  Hudson merger
               MUST NOT be  approved  by the holders of a majority of the shares
               of Cohoes common stock.

          o    Your vote  AGAINST  the  Hudson/Cohoes  merger will send a strong
               message  to the  Cohoes  Board  of  Directors  that  you  want to
               preserve   your   opportunity   to  accept  the  superior   value
               represented by our offer and that you reject a transaction  which
               does not provide more value to shareholders.

         YOUR VOTE IS  ESSENTIAL!  IF YOU WANT THE  OPPORTUNITY  TO CONSIDER THE
TRUSTCO OFFER,  VOTE AGAINST THE PROPOSED  HUDSON MERGER BY SIGNING,  DATING AND
RETURNING THE ACCOMPANYING GOLD PROXY CARD TODAY.

         Even if you  previously  have  submitted a proxy card  furnished by the
Cohoes Board, it is not too late to change your vote by simply  signing,  dating
and returning the enclosed GOLD proxy card today.




         WE URGE YOU TO PROTECT YOUR  INTERESTS -- PLEASE SIGN,  DATE AND RETURN
THE GOLD PROXY CARD TODAY.

         Thank you for your consideration and support.

                                                     Sincerely,

                                                     /s/  Robert A. McCormick
                                                     -----------------------
                                                     Robert A. McCormick
                                                     President and
                                                     Chief Executive Officer





                                    IMPORTANT

    1.   If your Cohoes shares are held in your own name,  please sign,  date
         and mail the enclosed GOLD proxy card to Georgeson Shareholder
         Communications Inc. in the postage-paid envelope provided.

    2.   If your Cohoes  shares are held in  "street-name,"  only your broker or
         bank can vote your shares and only upon  receipt of your  specific
         instructions.  If your  shares  are held in  "street-name,"  deliver
         the enclosed  GOLD proxy card to your broker or bank and contact the
         person  responsible  for your  account to vote on your behalf and to
         ensure that a GOLD proxy card is submitted on your  behalf.  TrustCo
         urges you to confirm in writing your  instructions to the person
         responsible for your account and to provide a copy of those
         instructions  to  TrustCo  in care of  Georgeson  Shareholder
         Communications  Inc.  at 17 State Street,  10th Floor, New York, New
         York 10004 so that TrustCo will be aware of all instructions  given and
         can attempt to ensure that such instructions are followed.

    3.   Only  stockholders  of record on June 22, 2000 are  entitled to vote at
         the  special  meeting  of  Cohoes  stockholders.   TrustCo  urges  each
         stockholder  to ensure  that the  record  holder  of his or her  shares
         signs,  dates and  returns  the  enclosed  GOLD  proxy  card as soon as
         possible.

         Do not sign or return any proxy card you may receive from Cohoes.

         If you have any  questions  or need  assistance  in voting your shares,
         please call:

                    Georgeson Shareholder Communications Inc.
                           17 State Street, 10th Floor
                            New York, New York 10004

                            Toll Free: 1-800-223-2064

         THIS PROXY STATEMENT  RELATES SOLELY TO THE  SOLICITATION OF PROXIES IN
OPPOSITION  TO THE  PROPOSED  HUDSON  MERGER AND IS NEITHER AN OFFER TO SELL ANY
SHARES OF TRUSTCO  COMMON  STOCK NOR A REQUEST  FOR THE TENDER OF COHOES  COMMON
STOCK.  THE TRUSTCO  EXCHANGE OFFER IS BEING REGISTERED UNDER THE SECURITIES ACT
OF 1933 AND IS BEING MADE ONLY BY MEANS OF A  PROSPECTUS  AND RELATED  LETTER OF
TRANSMITTAL, WHICH WILL BE MAILED SEPARATELY TO COHOES STOCKHOLDERS.






                         SPECIAL MEETING OF STOCKHOLDERS
                                       OF
                              COHOES BANCORP, INC.
                          TO BE HELD ON AUGUST 17, 2000

                                 PROXY STATEMENT
                                       OF
                              TRUSTCO BANK CORP NY

                             SOLICITATION OF PROXIES
                     IN OPPOSITION TO THE PROPOSED MERGER OF
               COHOES BANCORP, INC. AND HUDSON RIVER BANCORP, INC.

         This Proxy  Statement and the enclosed GOLD proxy card are furnished by
TrustCo Bank Corp NY, a New York corporation ("TrustCo"), in connection with its
solicitation of proxies to be used at a special meeting (the "Special  Meeting")
of stockholders of Cohoes Bancorp, Inc., a Delaware corporation  ("Cohoes"),  to
be held on August 17, 2000, at the Century House,  997 New Loudon Road,  Latham,
New York,  3:00 p.m.  local  time,  and at any  adjournments,  postponements  or
reschedulings thereof.  Pursuant to this Proxy Statement,  TrustCo is soliciting
proxies from holders of shares of common stock of Cohoes ("Cohoes Common Stock")
to vote AGAINST the proposed  merger of Hudson River  Bancorp,  Inc., a Delaware
corporation ("Hudson"),  with Cohoes (such proposed merger, the "Proposed Hudson
Merger").  Cohoes has set June 22, 2000 as the record date for determining those
stockholders  who will be entitled to vote at the  Special  Meeting.  This Proxy
Statement and the enclosed GOLD proxy are first being mailed to  stockholders of
Cohoes on or about July 31, 2000. The principal  executive offices of Cohoes are
located at 75 Remsen Road, Cohoes, New York 12047 (518) 233-6500.

THE TRUSTCO OFFER

         TrustCo intends to commence an offer (the "TrustCo  Offer") to exchange
each  outstanding  share of Cohoes  Common  Stock for  common  stock of  TrustCo
("TrustCo Common Stock") with a value of $16.00. The terms and conditions of the
TrustCo Offer are set forth in a preliminary  prospectus (as such prospectus may
be amended or  supplemented,  the "Exchange Offer  Prospectus")  and the related
letter of transmittal,  which are included in the Registration Statement on Form
S-4 (the  "Registration  Statement")  filed by TrustCo with the  Securities  and
Exchange  Commission  (the  "Commission")  on July 11,  2000 and will be  mailed
separately to Cohoes  stockholders.  Cohoes  stockholders  are urged to read the
Exchange Offer Prospectus  carefully because it contains  important  information
concerning the TrustCo Offer.


         Based on the closing price of Cohoes Common Stock on the Nasdaq on June
23, 2000 (the last trading day before the  announcement  of the TrustCo  Offer),
the  TrustCo  Offer with a value of $16.00 per Cohoes  share  represented  a 16%
premium over the closing  price of Cohoes Common Stock on the Nasdaq on June 23,
2000, and a 30% premium over the implied value of the Proposed  Hudson Merger of
$12.29  (based  on the 1.185 to 1  exchange  ratio in that  transaction  and the
$10.375  closing price of Hudson  common stock on June 23, 2000).  Based on July
13, 2000 closing  prices on the Nasdaq,  the TrustCo  Offer of $16.00 of TrustCo
Common Stock per share of Cohoes Common Stock represented a 17% premium over the
implied  value of the Proposed  Hudson Merger of $13.70 (based on the 1.185 to 1
exchange  ratio in that  transaction  and the $11.5625  closing  price of Hudson
common stock).  TrustCo believes that the increase in the price of Cohoes Common
Stock and Hudson  common  stock is  attributable  primarily to the effect of the
announcement  of the TrustCo  Offer upon the market for Cohoes  Common Stock and
Hudson  common  stock.  Because  the number of shares  you would  receive in the
Proposed Hudson Merger is fixed, the implied value of the Proposed Hudson Merger
will fluctuate based on changes in the market prices of the Hudson common stock.
The number of shares of TrustCo Common Stock Cohoes stockholders would





receive under the TrustCo Offer will be determined by the average closing price
of the of TrustCo Common Stock on the Nasdaq over a 20-day period ending five
days before the closing on our offer. As a result, the value of the actual
number of shares of TrustCo Common Stock Cohoes stockholders recive may be worth
more or less than $16.00 depending on the value of TrustCo Common Stock on the
closing date as compared to the average value used to determine the number of
shares of TrustCo Common Stock that Cohoes stockholders will receive.

         TrustCo is seeking,  upon the valid termination of the merger agreement
between  Hudson and Cohoes,  to negotiate a  definitive  merger  agreement  with
Cohoes  pursuant to which Cohoes  would,  as soon as  practicable  following the
completion of the TrustCo Offer, merge with TrustCo or a wholly owned subsidiary
of TrustCo (the "Proposed TrustCo Merger"). The purpose of the TrustCo Offer and
the  Proposed  TrustCo  Merger is to enable  TrustCo to acquire  control of, and
ultimately  the entire equity  interest in, Cohoes.  The TrustCo  Offer,  as the
first  step  in  TrustCo's  proposed  acquisition  of  Cohoes,  is  intended  to
facilitate  the  acquisition of a majority of the  outstanding  shares of Cohoes
Common  Stock.  The  purpose of the  Proposed  TrustCo  Merger is to acquire all
shares of Cohoes  Common Stock not  exchanged  pursuant to the TrustCo  Offer or
otherwise.  Pursuant to the Proposed TrustCo Merger, each then outstanding share
of Cohoes  Common  Stock  (other than shares owned by TrustCo and shares held in
the treasury of Cohoes)  would be  converted  into the right to receive the same
number of shares of TrustCo  Common  Stock as would be  received  in the TrustCo
Offer.

REASONS FOR THE TRUSTCO OFFER

         TrustCo believes that the acquisition of Cohoes by TrustCo represents a
compelling   opportunity   to  enhance   value  for  both   Cohoes  and  TrustCo
stockholders.  Specifically, TrustCo estimates that a combination of TrustCo and
Cohoes would result in: (i) accretion to TrustCo's reported diluted earnings per
share of 8% for 2001 and accretion to TrustCo's  diluted cash earnings per share
(i.e.,  reported earnings before amortization of intangibles) of 9% in 2001; and
(ii) an increase  in  TrustCo's  tangible  book value from $3.19 per share as of
December 31, 1999 to an estimated $4.53 per share on a pro forma basis. These
amounts, however, are estimates only, and TrustCo can give no assurances that
the estimate values will be obtained.


         In  addition,  TrustCo  believes  that the  combination  of TrustCo and
Cohoes will produce substantial benefits for Cohoes stockholders,  including the
following.


         o        SIGNIFICANT PREMIUM.  Based on average  closing  prices for
                  Hudson  common stock over the 20 trading days before we made
                  our June 8, 2000 merger  proposal to the Cohoes board of
                  directors,  the value of our offer represented  an average
                  premium of more than 42% over the  implied  value of the
                  Proposed  Hudson Merger over that 20 day period.  Based on
                  closing  prices on June 23,  2000 (the last trading day before
                  the  announcement  of the TrustCo  Offer),  the TrustCo Offer
                  represented a 30% premium over the implied value of the
                  Proposed Hudson Merger. Based on July 13, 2000 closing prices,
                  the TrustCo Offer represents a premium of  approximately  17%
                  over the implied value of the Proposed  Hudson Merger.


         o          BETTER LONG-TERM GROWTH PROSPECTS. TrustCo believes that a
                    combination  of TrustCo  and  Cohoes  has  better  long-term
                    growth prospects for Cohoes  stockholders  than the Proposed
                    Hudson  Merger.  Although the price of TrustCo  Common Stock
                    has decreased  17.5% between  December 31, 1998 and July 13,
                    2000 (from $15.00 to $12.375,  respectively),  TrustCo has a
                    history of strong  profitability  and growth in  shareholder
                    value  based on several  common  benchmarks  used to measure
                    performance. For the last 3-year, 5-year and 7-year periods,
                    TrustCo's total return to shareholders,  on an annual basis,
                    has averaged 23.02%, 24.58% and 23.32%, respectively.





                                       2



     A  comparison  of  TrustCo's   operating   performance  data  to  operating
performance  data of Cohoes,  Hudson,  a "regional  group" and a "highly  valued
group"  demonstrates   TrustCo's  superior  operating  performance  across  most
(although not all) of the operating  performance data detailed below. This table
sets forth the comparative  data as of and for the twelve months ended March 31,
2000 for Hudson,  the "regional group" and the "highly valued group",  and as of
December 31, 1999 for Cohoes and TrustCo.






                                                                                                          Highly
                                                                                         Regional         Valued
                                              TrustCo       Cohoes        Hudson        Group (1)       Group (2)

                                                                                           
Total Assets (In Thousands)                  $2,364,022      $707,884     $1,149,547      $1,090,996      $1,248,561
Asset growth rate of total assets                 (4.87)%      (.05)%         30.46%           8.02%          10.10%
Tangible equity/assets                             7.04%       18.34%         16.45%           7.97%           6.01%
Intangible assets/total equity                     0.00%        0.00%          5.79%           1.52%           1.12%
Net loans/total assets                            54.74%       80.00%         69.96%          65.64%          66.25%
Cash and securities/total assets                  29.41%       17.57%         23.68%          31.02%          30.56%
Gross loans/total deposits                        67.71%      119.88%        110.06%          97.98%          99.99%
Total borrowings/total assets                      6.46%       12.50%         13.16%          21.25%          25.68%
Non-performing assets/total assets                 0.49%        0.74%          1.04%           0.47%           0.48%
Loan loss reserve/gross loans                      4.14%        0.78%          2.38%           1.17%           1.08%
Net interest margin                                4.16%        4.14%          4.83%           3.27%           3.11%
Loan loss provision/average assets                 0.21%        0.28%          0.62%           0.12%           0.08%
Non-interest income/average assets                 0.64%        0.43%          0.25%           0.36%           0.48%
Non-interest expense/average assets                1.89%        2.55%          2.80%           2.13%           2.27%
Efficiency ratio                                  38.62%       59.36%         52.77%          59.02%          54.10%
Return on average assets                           1.58%        0.92%          0.96%           0.97%           1.09%
Return on average equity(3)                       22.52%        4.47%          4.58%          10.43%          15.69%
Price/tangible book value per share              426.05%       67.66%         70.01%         117.31%         155.04%
Price/earnings per share                          19.49x       15.97x         14.71x           9.17x           9.53x
Dividend yield                                     4.23%        1.79%          1.25%           1.52%           3.62%
Dividend payout ratio                             79.16%       26.09%         18.46%          23.12%          32.25%

         --------------------
          (1)     Averages for the  "regional  group"  consist of data  obtained
                  from the Prospectus, dated July 3, 2000, filed by Hudson
                  with the  Commission  on July 11, 2000  with  respect  to the
                  Proposed Hudson Merger.
         (2)      Averages  for  the "  highly  valued  group"  consist  of data
                  obtained from the Prospectus, dated July 3, 2000, filed by
                  Hudson with the  Commission  on July 11, 2000 with  respect to
                  the Proposed Hudson Merger.
         (3)      Average  shareholders equity for TrustCo excludes market
                  adjustment for securities  available for sale.


                                      3


Of course,  past performance is not a guarantee of future results.  However,  as
evidenced from the figures set forth above,  TrustCo has  consistently  achieved
strong  profitability and operating results and superior shareholder returns. If
successful,  TrusstCo's  offers to acquire  Cohoes and  Hudson  would  result in
dilution of the tangible book value per share of Cohoes and Hudson stockholders.
As of March 31, 2000,  the tangible book value per share of TrustCo,  Cohoes and
Hudson was $3.19, $14.90 and $12.11, respectively.  Upon completion of TrustCo's
proposed acquisition of Cohoes, TrustCo's tangible book value per share would be
$4.53 and,  upon  completion  of TrustCo's  proposed  acquisition  of Cohoes and
Hudson, TrustCo's tangible book value per share would be $5.84.

          o    IMPROVED  CASH  DIVIDENDS.  According  to the July 3, 2000  proxy
               statement/prospectus   distributed  by  Hudson  and  Cohoes  with
               respect to the Proposed Hudson Merger,  Cohoes  shareholders  are
               expected to receive pro forma  equivalent  dividends of $0.28 per
               share (based on the exchange  ratio of 1.185 to 1 in the Proposed
               Hudson Merger and Hudson's  expected annual dividend of $0.24 per
               share). Prior to receiving dividends at the $0.24 per share rate,
               Cohoes  stockholders  will already have received  1.185 shares of
               Hudson  Common  Stock  foreach of their  shares of Cohoes  Common
               Stock.  BASED ON TRUSTCO'S  CURRENT ANNUAL  DIVIDEND OF $0.60 PER
               SHARE,  COHOES  STOCKHOLDERS WOULD RECEIVE A PRO FORMA EQUIVALENT
               DIVIDEND OF $0.78,  OR MORE THAN 179% ABOVE  COHOES'  CURRENT AND
               PRO  FORMA  EQUIVALENT  ANNUAL  DIVIDEND  RATE OF $0.28 PER YEAR.
               Because of the actual  number of shares of TrustCo  Common  Stock
               that  Cohoes  stockholders  will  receive is not yet  fixed,  the
               estimated  amount  of cash  dividends  Cohoes  stockholders  will
               receive will fluctuate with the value of TrustCo Common Stock. In
               the past five years, on a compounded basis,  TrustCo has achieved
               an 11% annual growth rate in its per share  dividend.  During the
               year ended December 31, 1999,  TrustCo paid out approximately 79%
               of its  net  income  in  the  form  of  cash  dividends.  TrustCo
               anticipates  (assuming it realizes  within the next two years the
               estimated $9 million in cost savings  from  combinig  with Cohoes
               and continues to pay the same percentage of income in the form of
               cash  dividends)  that  the  dividend  rate  for the  year  ended
               December 31, 1999 would have been $0.59 per share, as compared to
               the  annualized  dividend  rate of  $0.60  per  share  for  2000.
               Further, assuming that Hudson's option to acquire 19.9% of Cohoes
               Common Stock is  exercised,  the dividend rate for the year ended
               December 31, 1999 would have been $0.57 per share. (The foregoing
               dividend  rates do not reflect the potential  impact of TrustCo's
               proposed  acquisition of Hudson.) Although TrustCo believes that,
               upon completion of its proposed acquisition of Cohoes (as well as
               the proposed acquasition of Hudson, which is described below), it
               will have the  resources  to continue to pay  dividends  with its
               past  practices,  the  declaration  and paymemt of  dividends  is
               within the  discretion of TrustCo's  board of directors,  and, to
               the extent  TrustCo's  board  determines that the payment of such
               dividends  may  have an  adverse  effect  upom  TrustCo's  growth
               potential,  level of customer service or financial condition, the
               board may decide to reduce dividend payments rates.


CONDITIONS TO THE TRUSTCO OFFER

     The TrustCo Offer is conditioned upon, among other things:  (i) there being
validly  tendered and not withdrawn prior to the expiration of the TrustCo Offer
a number of shares of Cohoes  Common  Stock  which,  together  with the  100,000
shares of Cohoes Common Stock now owned by TrustCo,  would  represent at least a
majority  of the total  number of  outstanding  Cohoes  Common  Stock on a fully
diluted basis; (ii) the receipt of all regulatory approvals sought by TrustCo in
connection with the  transactions  contemplated by the TrustCo Offer without the
imposition of any material condition  unacceptable to TrustCo, the expiration of
all required  waiting  periods,  and the compliance by TrustCo with any terms or
conditions of such approvals (the "Regulatory Approval Condition"); (iii) either
the Cohoes Board of Directors (the "Cohoes  Board") having  approved the TrustCo
Offer and the Proposed  TrustCo  Merger and having amended the charter of Cohoes
Savings Bank to  eliminate  the  provisions  thereof  prohibiting  the direct or
indirect ownership of more than 10% of any class of an equity security of Cohoes
Savings Bank or, in lieu of such actions,  TrustCo being satisfied,  in its sole
discretion,  that  Section  203 of the  Delaware  General  Corporation  Law (the
"DGCL")(which  generally prohibits  transactions  between a Delaware corporation

                                       4


and a 15% or greater  shareholder unless certain  conditions,  such as the prior
approval  of the  Delaware  corporation's  board,  have been  satisfied  and the
anti-takeover  provisions  of Cohoes'  Certificate  of  Incorporation  ("Cohoes'
Certificate")  and the  charter of Cohoes  Savings  Bank are  invalid or are not
applicable  to the  transactions  contemplated  by the  TrustCo  Offer  and  the
Proposed  TrustCo  Merger (the  "Removal of  Impediments  Condition");  (iv) the
approval  of the  issuance  of shares of TrustCo  Common  Stock  pursuant to the
TrustCo Offer by the holders of a majority of the shares of TrustCo Common Stock
voted at a meeting  of such  holders  at which the  total  number of votes  cast
represents  over fifty percent in interest of all shares of TrustCo Common Stock
outstanding on the  applicable  record date (the "TrustCo  Stockholder  Approval
Condition"); (v) the receipt of an opinion of counsel that the TrustCo Offer and
the Proposed TrustCo Merger qualify as a reorganization under ss.368(a)(1)(A) of
the Internal  Revenue Code of 1986, as amended;  (vi) since June 30, 1999, there
being no material adverse change, or any prospective material adverse change, in
the financial condition,  business or assets of Cohoes; (vii) the termination of
the Agreement and Plan of Merger dated April 25, 2000 between  Hudson and Cohoes
(the "Hudson  Merger  Agreement");  (viii) the  termination  of the Stock Option
Agreement  dated April 25, 2000 between  Hudson and Cohoes (the  "Hudson  Option
Agreement") and surrender to Cohoes of the option granted to Hudson  thereunder;
(ix) the  stockholders of Cohoes not approving the Proposed  Hudson Merger;  (x)
TrustCo and Cohoes  entering into a definitive  merger  agreement;  and (xi) the
Registration  Statement  becoming  effective.  TrustCo has reserved the absolute
right to  waive  any of the  conditions  of the  TrustCo  Offer  other  than the
Regulatory  Approval Condition,  the TrustCo Stockholder  Approval Condition and
the effectiveness of the Registration Statement.

     The Removal of  Impediments  Condition  would be satisfied upon approval by
the Cohoes Board of the TrustCo Offer and the Proposed TrustCo Merger.

     There can be no assurance as to whether the conditions to the TrustCo Offer
will  be  satisfied  and,  if so,  as to the  timing  of  satisfaction  of  such
conditions.  While  satisfaction  of  certain of such  conditions  is within the
control of the Cohoes Board, satisfaction of certain other conditions is outside
the control of the Cohoes Board.  By voting against the Proposed  Hudson Merger,
stockholders  can  demonstrate  their  support for the proposed  combination  of
Cohoes and TrustCo.  A vote against the Proposed  Hudson Merger moves all Cohoes
stockholders closer to being able to benefit from the TrustCo Offer.

     While  TrustCo is committed  to helping  Cohoes'  stockholders  realize the
significant premium and greater value to be offered in the TrustCo Offer and the
Proposed TrustCo Merger, until the conditions to the TrustCo Offer are satisfied
or waived,  TrustCo will not purchase  any Cohoes  Common Stock  pursuant to the
TrustCo Offer.  Accordingly,  a vote for the Proposed  Hudson Merger could leave
Cohoes  stockholders  without a viable  alternative for an acquisition of Cohoes
because  TrustCo will not proceed with the TrustCo Offer if the Proposed  Hudson
Merger is  approved  by Cohoes  stockholders.  Even if the  Cohoes  stockholders
reject the Proposed Hudson Merger, however,  TrustCo cannot offer any assurances
that all of the other conditions to the TrustCo Offer will be satisfied and that
TrustCo will proceed with completion of the TrustCo Offer.

CERTAIN INFORMATION CONCERNING THE PROPOSED HUDSON MERGER

         The  Hudson  Merger  Agreement  provides  that in the  Proposed  Hudson
Merger,  Hudson will be the surviving  corporation.  Each  outstanding  share of
Cohoes Common Stock,  other than those  beneficially  owned by Cohoes or Hudson,
would be converted into 1.185 shares of Hudson common stock.  The obligations of
Cohoes and Hudson to complete the Proposed  Hudson Merger are subject to various
conditions,  including  the  following:  (i) approval and adoption of the Hudson
Merger Agreement by the stockholders of Cohoes and Hudson;  and (ii) receipt and
effectiveness  of  all  governmental  and  other  approvals,  registrations  and
consents  and  the  expiration  of  all  related  waiting  periods  required  to
consummate the Proposed Hudson Merger and the issuance of Hudson common stock.

                                       5



         In connection with the execution of the Hudson Merger Agreement, Cohoes
and Hudson  also  entered  into the Hudson  Option  Agreement  pursuant to which
Cohoes granted to Hudson an option (the "Hudson  Option") to purchase  1,574,538
shares  of  Cohoes  Common  Stock  (or  approximately  19.9% of the  issued  and
outstanding  shares of Cohoes  Common  Stock at the time of grant of the  Hudson
Option),  at an  exercise  price  of  $9.8125  per  share,  subject  to  certain
adjustments.

         Hudson may  exercise the Hudson  Option if both an "initial  triggering
event" and a "subsequent  triggering  event" occur prior to the occurrence of an
event that would terminate the Hudson Option.  An initial  triggering  event has
occurred under the Hudson Option  Agreement by virtue of TrustCo's filing of the
Registration Statement with the Commission.  A subsequent triggering event under
the Hudson Option will have occurred if any person acquires beneficial ownership
of 25% or more of the  outstanding  voting  securities  of  Cohoes  or if Cohoes
enters into an agreement with respect to or otherwise proposes or recommends any
transaction  with a third  party  (other  than  Hudson)  involving  a merger  or
consolidation  of,  or a sale  of all or a  substantial  part of the  assets  or
deposits of or securities  constituting  25% or more of the  outstanding  voting
power of,  Cohoes or any of its  subsidiaries.  Completion  of the TrustCo Offer
would  constitute a subsequent  triggering  event and would result in the Hudson
Option becoming exercisable.

         The foregoing description of the Hudson Merger Agreement and the Hudson
Option  Agreement  is qualified in its entirety by reference to the full text of
the Hudson Merger  Agreement and the Hudson  Option  Agreement,  copies of which
were  included as exhibits to the Hudson  Current  Report filed on Form 8-K with
the Commission on May 5, 2000.

                                    IMPORTANT


         IF YOU WANT TO HAVE THE  OPPORTUNITY  TO ACCEPT THE TRUSTCO  OFFER,  WE
URGE YOU TO PROMPTLY SIGN, DATE AND MAIL THE ENCLOSED GOLD PROXY TO VOTE AGAINST
THE PROPOSED HUDSON MERGER.  BECAUSE THE SPECIAL MEETING IS SCHEDULED FOR AUGUST
17,  2000,  WE URGE YOU TO  EXECUTE  AND MAIL THE GOLD PROXY CARD AS SOON AS
POSSIBLE.

         REJECTION OF THE PROPOSED  HUDSON MERGER IS A CRITICAL STEP IN SECURING
THE SUCCESS OF THE TRUSTCO OFFER.  YOUR VOTE AGAINST THE PROPOSED  HUDSON MERGER
DOES NOT OBLIGATE YOU TO TENDER YOUR SHARES PURSUANT TO THE TRUSTCO OFFER.


         EVEN IF YOU HAVE  ALREADY  SENT A PROXY TO THE COHOES  BOARD,  YOU HAVE
EVERY RIGHT TO CHANGE YOUR VOTE.  YOU MAY REVOKE THAT PROXY AND VOTE AGAINST THE
PROPOSED HUDSON MERGER BY SIGNING,  DATING AND MAILING THE ENCLOSED GOLD PROXY
IN THE  ENCLOSED  ADDRESSED  ENVELOPE.  NO POSTAGE IS NECESSARY IF YOUR PROXY IS
MAILED IN THE UNITED STATES.

         THIS PROXY STATEMENT  RELATES SOLELY TO THE  SOLICITATION OF PROXIES IN
OPPOSITION  TO THE  PROPOSED  HUDSON  MERGER AND IS NEITHER AN OFFER TO SELL ANY
SHARES OF TRUSTCO  COMMON  STOCK NOR A REQUEST  FOR THE TENDER OF COHOES  COMMON
STOCK.  THE TRUSTCO OFFER IS BEING  REGISTERED  UNDER THE SECURITIES ACT OF 1933
AND IS  BEING  MADE  ONLY  BY  MEANS  OF A  PROSPECTUS  AND  RELATED  LETTER  OF
TRANSMITTAL, WHICH ARE BEING MAILED SEPARATELY TO COHOES STOCKHOLDERS.

                                       6


                         BACKGROUND OF THE TRUSTCO OFFER

         From time to time, TrustCo is involved in due diligence investigations,
discussions  and   negotiations   concerning   possible   business   combination
transactions  with other  financial  institutions.  TrustCo  generally  seeks to
acquire financial  institutions that would: (i) complement its overall strategic
focus;  (ii)  provide  opportunities  for  growth in  markets  where the  target
financial  institution  conducts  business;  and (iii) improve  TrustCo's retail
banking franchise.

         On April 25, 2000,  Cohoes and Hudson  announced  that they had entered
into the Hudson  Merger  Agreement and the Hudson  Option  Agreement.  Following
announcement  of the Proposed  Hudson  Merger,  TrustCo  reviewed its  strategic
options in light of the Proposed  Hudson  Merger,  including the  possibility of
proceeding with one or more offers for either or both of Cohoes and Hudson.

         On June 8, 2000,  TrustCo  sent a letter to Mr.  Duncan  MacAffer,  the
Chairman  of the Board of Cohoes,  proposing  the merger of TrustCo  and Cohoes.
Pursuant to the proposal, TrustCo would acquire Cohoes in a merger in which each
share of Cohoes  Common  Stock would be exchanged  for shares of TrustCo  Common
Stock valued at $16.00. The proposal expired on June 23, 2000 and, on that date,
Cohoes  informed  TrustCo that the a merger with TrustCo was contrary to Cohoes'
strategic business plan and declined to have any discussions with TrustCo.

         On June 26, 2000,  TrustCo publicly announced its intention to commence
a tender offer to exchange  shares of TrustCo  Common Stock valued at $16.00 for
each  share of Cohoes  Common  Stock.  Also on June 26,  2000,  Cohoes  publicly
announced that it remained fully committed to the Proposed Hudson Merger.


         On July 11, 2000,  TrustCo filed a  Registration  Statement on Form S-4
containing a preliminary  prospectus and the related letter of transmittal  with
respect to the TrustCo Offer. On July 31, 2000,  TrustCo filed  definitive proxy
materials  with the  Commission  and  disseminated  those  materials  to  Cohoes
stockholders.

                            TRUSTCO'S OFFER TO HUDSON

         On June 8, 2000,  TrustCo  sent a letter to Mr. Earl  Schram,  Jr., the
Chairman  of the Board of  Hudson,  proposing  a merger of TrustCo  and  Hudson.
Pursuant to the proposal, TrustCo would acquire Hudson in a merger in which each
share of Hudson's  common stock would be exchanged for shares of TrustCo  Common
Stock with an aggregate value equal to $14.00. On June 23, 2000, Hudson informed
TrustCo that Hudson's Board of Directors had  unanimously  rejected the proposal
to merge with TrustCo.


         On June 26, 2000,  TrustCo publicly announced its intention to commence
an offer to exchange  shares of TrustCo  Common  Stock with an  aggregate  value
equal to $14.00 for each share of Hudson common stock.  In addition to its offer
to Hudson shareholders, TrustCo has been actively soliciting Hudson shareholders
to vote against the Proposed Hudson Merger

         The consummation of the Hudson exchange offer on the part of TrustCo is
subject to the same or similar conditions (or the waiver thereof) as the TrustCo
Offer.  However,  neither the consummation of the Hudson exchange offer nor of a
merger between TrustCo and Hudson is a condition precedent to the TrustCo Offer.



               REASONS TO VOTE AGAINST THE PROPOSED HUDSON MERGER

                                       7


         TrustCo  urges you to vote your shares of Cohoes  Common Stock  AGAINST
the Proposed Hudson Merger for the following reasons.

         o        A VOTE  AGAINST  THE  PROPOSED  HUDSON  MERGER  GIVES  YOU THE
                  OPPORTUNITY  TO RECEIVE A SIGNIFICANT  PREMIUM FOR YOUR SHARES
                  IN THE TRUSTCO OFFER.


     The TrustCo  Offer,  if  consummated,  would  provide you $16.00 of TrustCo
Common Stock per share of Cohoes Common Stock. In the Proposed Hudson Merger you
will receive shares of Hudson common stock which have an implied value of $13.70
based on the exchange ratios in the Proposed Hudson Merger and the closing price
of Hudson  common stock on July 13, 2000.  Based on average  closing  prices for
Hudson  common  stock over the 20 trading  days  before we made our June 8, 2000
merger  proposal  to the  Cohoes  board of  directors,  the  value of our  offer
represented  an average  premium of more than 42% over the implied  value of the
Proposed  Hudson Merger.  As of July 13, 2000,  the TrustCo Offer  represented a
premium of $2.30 per share of Hudson Common Stock, or approximately 17% over the
implied value of the Proposed Hudson Merger, although, as noted earlier, TrustCo
believes that the increase in the price of Cohoes Common Stock and Hudson common
stock is attributable primarily to the effect of the announcement of the TrustCo
Offer upon the market for Cohoes Common Stock and Hudson  common stock.  Because
the  number of  shares of Hudson  common  stock  that you would  receive  in the
Proposed Hudson Merger is fixed, the implied value of the Proposed Hudson Merger
will fluctuate based on changes in the market prices of the Hudson common stock.
The number of shares of TrustCo Common Stock Cohoes  stockholders  would receive
under the TrustCo Offer will be  determined by the average  closing price of the
TrustCo  Common Stock on the Nasdaq over a 20-day period ending five days before
closing  on our offer.  As a result the value of the actual  number of shares of
TrustCo Common Stock Cohoes stockholders  receive may be worth more or less than
$16.00  depending  on the value of TrustCo  Common  Stock on the closing date as
compared to the average  value used to determine the number of shares of TrustCo
Common Stock that Cohoes stockholders will receive.


         o        A VOTE  AGAINST  THE  PROPOSED  HUDSON  MERGER  GIVES  YOU THE
                  OPPORTUNITY TO RECEIVE THE CASH DIVIDEND INCREASE  REPRESENTED
                  BY THE TRUSTCO OFFER.

         The TrustCo Offer, if consummated, would provide you with a significant
increase in cash  dividends  based on historical  practices.  Currently,  Cohoes
shareholders  receive cash dividends at a rate of $0.28 per year for each Cohoes
share.  Under the TrustCo Offer, the cash dividends payable on each Cohoes share
would be $0.78 a year, an increase of 179%.  Because the actual number of shares
of TrustCo Common Stock that Cohoes  stockholders will receive is not yet fixed,
the estimated  amount of cash dividends  Cohoes  stockholders  will receive will
fluctuate with the value of the TrustCo Common Stock.  Assuming,  as provided by
the terms of the  Hudson/Cohoes  merger  agreement,  that Hudson's dividend rate
would increase to $0.24 per year, Cohoes  stockholders would continue to receive
dividends at a rate of $0.28 per year.  You should note,  however that  although
TrustCo currently intends to continue to pay dividends  consistent with its past
practices,  the declaration and payment of dividends is within the discretion of
TrustCo's board of directors,  and to the extend TrustCo's board determines that
the payment of such dividends may have an adverse effect upon TrustCo's business
or financial condition, the board may decide to reduce dividend payment rates.

         o        A VOTE  AGAINST  THE  PROPOSED  HUDSON  MERGER  SENDS A STRONG
                  MESSAGE TO THE COHOES  BOARD  THAT YOU WANT TO  PRESERVE  YOUR
                  OPPORTUNITY TO ACCEPT THE TRUSTCO OFFER.

                                       8


         By  voting  against  the  Proposed  Hudson  Merger,   stockholders  can
demonstrate their support for the proposed  combination of Cohoes and TrustCo. A
vote against the Proposed  Hudson  Merger  moves Cohoes  stockholders  closer to
being able to benefit from the TrustCo Offer.

         A vote  against the  Proposed  Hudson  Merger will not  obligate you to
tender  your  shares of Cohoes  Common  Stock  pursuant  to the  TrustCo  Offer.
However,  it will give you an  opportunity  to decide for  yourself  whether the
TrustCo  Offer  is  in  your  best  interest.  On  the  other  hand,  if  Cohoes
stockholders  approve the Proposed Hudson Merger, it is likely that the Proposed
Hudson Merger will be consummated.

         o        A VOTE AGAINST THE PROPOSED  HUDSON MERGER WILL SATISFY ONE OF
                  THE  CONDITIONS TO THE TRUSTCO OFFER.

         One condition of the TrustCo Offer is that Cohoes  stockholders  do not
approve the Proposed  Hudson Merger.  TrustCo will not acquire any Cohoes Common
Stock in the TrustCo  Offer  unless this  condition is  satisfied.  Thus, a vote
against the Proposed Hudson Merger moves all Cohoes stockholders closer to being
able to receive the TrustCo  Common Stock  offered in the TrustCo  Offer.  For a
description of certain other conditions to the TrustCo Offer, see "Conditions to
the TrustCo Offer."

         While TrustCo is committed to helping Cohoes  stockholders  realize the
significant  premium and greater  value of the  TrustCo  transaction,  until the
conditions  to the  TrustCo  Offer are  satisfied  or waived,  TrustCo  will not
purchase any Cohoes Common Stock pursuant to the TrustCo Offer.  Accordingly,  a
vote for the Proposed  Hudson Merger could leave Cohoes  stockholders  without a
viable  alternative  to the  Proposed  Hudson  Merger  because  TrustCo will not
proceed  with the TrustCo  Offer if the  Proposed  Hudson  Merger is approved by
Cohoes stockholders.


                    OBSTACLES TO THE TRUSTCO OFFER CREATED BY
                          THE COHOES BOARD OF DIRECTORS

         You should be aware that the Cohoes Board has taken several  actions in
connection  with the Proposed  Hudson Merger which create  barriers  against any
competing  proposals  (including the TrustCo Offer) and thus hinder your ability
to receive greater value for your Cohoes Common Stock.

         THE COHOES BOARD MAY IGNORE SUPERIOR PROPOSALS.    In the Hudson
Merger  Agreement,  Cohoes has agreed that from April 25, 2000 until the closing
of the Proposed Hudson Merger or the termination of the Hudson Merger Agreement,
Cohoes  may not enter into any  discussions  with or  furnish  any  confidential
information to any person making an offer to merge with or acquire Cohoes unless
the Cohoes Board has determined  that the failure to do the same would result in
a breach  of the  fiduciary  duty of the  Cohoes  Board  under  applicable  law.
Notwithstanding  the  preceeding,  the Cohoes Board cannot,without violating
the  Hudson  Merger  Agreement,  terminate  that  agreement  and  enter  into an
agreement  with another party even if, after such  discussions,  the other party
makes an offer superior to that of the Proposed Hudson Merger.

     THE COHOES BOARD HAS AGREED TO  RECOMMEND  THE  PROPOSED  HUDSON  MERGER TO
COHOES STOCKHOLDERS.  Under the terms of the Hudson Merger Agreement, the Cohoes
Board has  obligated  itself to recommend  the Proposed  Hudson Merger to Cohoes
stockholders,  even if a third party makes a superior  proposal to merge with or
acquire Cohoes.

                   YOU CAN TAKE IMMEDIATE STEPS TO HELP OBTAIN
                        THE MAXIMUM VALUE FOR YOUR SHARES

         (1)      Return your GOLD proxy and vote AGAINST the Proposed Hudson
                  Merger; and

                                       9


         (2)      Make your views known to the Cohoes Board.

BY TAKING THESE STEPS,  YOU WILL GIVE THE COHOES BOARD A CLEAR MESSAGE THAT THEY
SHOULD TAKE ALL NECESSARY  ACTIONS TO REMOVE ALL OBSTACLES TO THE TRUSTCO OFFER,
WHICH  PROVIDES YOU THE  OPPORTUNITY  TO RECEIVE A SIGNIFICANT  PREMIUM FOR YOUR
COHOES SHARES.

     We believe  that a vote  against  the  Proposed  Hudson  Merger will better
enable Cohoes  stockholders  to consider the TrustCo Offer,  and is essential to
secure the success of the TrustCo Offer.

                               VOTING INFORMATION

     According to information contained in the proxy  statement/prospectus filed
by Hudson and Cohoes with the SEC with respect to the Proposed Hudson Merger, as
of  June  22,  2000,   there  were  7,912,255  shares  of  Cohoes  Common  Stock
outstanding.  Approval of the Proposed  Hudson Merger  requires the  affirmative
vote of holders of a majority of all outstanding  shares of Cohoes Common Stock.
Cohoes  stockholders  are  entitled to one vote for each share of Cohoes  Common
Stock held as of June 22, 2000.  Broker  non-votes and abstentions will have the
same effect as votes against the Proposed Hudson Merger.

     The  accompanying   GOLD  proxy  will  be  voted  in  accordance  with  the
stockholder's instructions on such GOLD proxy. Stockholders may vote against the
Proposed  Hudson  Merger by  marking  the proper  box on the GOLD  proxy.  If no
instructions are given, the GOLD proxy will be voted AGAINST the Proposed Hudson
Merger.

     Whether or not you plan to attend the Special Meeting,  we urge you to vote
AGAINST the Proposed  Hudson Merger on the enclosed  GOLD proxy and  immediately
mail it in the enclosed envelope.  You may do this even if you have already sent
in a different  proxy  solicited  by the Cohoes  Board.  IT IS YOUR LATEST DATED
PROXY THAT  COUNTS.  Execution  and  delivery  of a proxy by a record  holder of
shares of Cohoes Common Stock will be presumed to be a proxy with respect to all
shares held by such record holder unless the proxy specifies otherwise.

     You may revoke your proxy at any time prior to its  exercise  by  attending
the Special  Meeting and voting in person,  by submitting a duly executed  later
dated proxy or by submitting a written notice of revocation to Cohoes' secretary
before the Special Meeting.  Unless revoked in the manner set forth above,  duly
executed  proxies in the form enclosed  will be voted at the Special  Meeting on
the Proposed Hudson Merger in accordance with your instructions.  In the absence
of such  instructions,  such proxies will be voted  AGAINST the Proposed  Hudson
Merger.

         TRUSTCO STRONGLY RECOMMENDS A VOTE AGAINST THE PROPOSED HUDSON MERGER.


     YOUR VOTE IS IMPORTANT.  PLEASE SIGN, DATE AND RETURN THE GOLD PROXY TODAY.

         IF YOU ALREADY  HAVE SENT A PROXY TO THE COHOES  BOARD,  YOU MAY REVOKE
THAT PROXY AND VOTE AGAINST THE PROPOSED  HUDSON  MERGER BY SIGNING,  DATING AND
MAILING THE ENCLOSED GOLD PROXY.

         If you have any questions about the voting of your shares, please call:

                                       10


                    Georgeson Shareholder Communications Inc.
                           17 State Street, 10th Floor
                            New York, New York 10004

                            Toll Free: 1-800-223-2064


                             SOLICITATION OF PROXIES

         Proxies will be solicited by mail, telephone,  telecopy, telegraph, the
Internet,  newspapers  and other  publications  of general  distribution  and in
person.  Directors,  officers  and  certain  employees  of TrustCo and the other
participants  listed on  Schedule  II hereto may assist in the  solicitation  of
proxies  without any additional  remuneration  (except as otherwise set forth in
this Proxy Statement).

         TrustCo  has  retained  Georgeson   Shareholder   Communications   Inc.
("Georgeson")   for  solicitation  and  advisory  services  in  connection  with
solicitations relating to the Special Meeting, for which Georgeson is to receive
a fee of $25,000 in connection with the  solicitation of proxies for the Special
Meeting.  TrustCo  has also  agreed to  reimburse  Georgeson  for  out-of-pocket
expenses and to indemnify  Georgeson  against certain  liabilities and expenses,
including  reasonable  legal fees and related  charges,  in connection  with its
solicitation activities.  Georgeson will solicit proxies for the Special Meeting
from individuals, brokers, banks, bank nominees and other institutional holders.
In addition,  TrustCo has  retained  Georgeson  to act as  information  agent in
connection with the TrustCo Offer.  TrustCo has agreed that it will pay a fee of
$10,000 to Georgeson for services as information agent,  reimburse Georgeson for
out-of-pocket  expenses and to indemnify  Georgeson against certain  liabilities
and expenses, including reasonable legal fees and related charges, in connection
with its engagement as information agent.

         Directors,  officers and certain employees of TrustCo may assist in the
solicitation of proxies without any additional remuneration.  The entire expense
of  soliciting  proxies  for the  Special  Meeting by or on behalf of TrustCo is
being borne by TrustCo.

                        CERTAIN INFORMATION ABOUT TRUSTCO

         TrustCo is a New York corporation with its principal  executive offices
located at 320 State Street,  Schenectady,  New York 12305. The telephone number
of TrustCo at such location is (518) 377-3311.

         TrustCo  is a New  York  corporation  and a  one-bank  holding  company
registered  under  the  Bank  Holding  Company  Act of  1956,  headquartered  in
Schenectady,  New York. TrustCo provides a full range of financial and fiduciary
services through its bank subsidiary,  Trustco Bank, National Association, which
has 53 banking  offices in the  upstate  New York  area.  As of March 31,  2000,
TrustCo  had,  on a  consolidated  basis,  total  assets of  approximately  $2.4
billion,  total deposits of approximately  $2.0 billion and total  shareholders'
equity of approximately $171 million. On February 21, 2000, TrustCo entered into
an agreement to acquire Landmark Financial Corp. ("Landmark"),  Canajoharie, New
York,  for $21.00 per share,  cash.  As of March 31,  2000,  Landmark  had, on a
consolidated basis, total assets of approximately $25.4 million,  total deposits
of approximately $21.9 million and total  shareholders'  equity of approximately
$1.9  million.  Landmark  is the  savings  and loan  holding  company  parent of
Landmark  Community Bank, a federal  savings bank,  which operates one office in
Canajoharie, New York.

         TrustCo's  Registration  Statement,  which  contains the Exchange Offer
Prospectus  and the  related  letter of  transmittal,  has been  filed  with the
Commission  under the Securities Act of 1933, as amended.  TrustCo is subject to
the informational filing requirements of the Securities Exchange Act of 1934, as
amended (the "Exchange Act"), and, in accordance therewith, is obligated to file

                                       11


reports,  proxy statements and other information with the Commission relating to
its  business,   financial  condition  and  other  matters.  Information  as  of
particular   dates   concerning   TrustCo's   directors  and   officers,   their
remuneration,  options  granted to them,  the  principal  holders  of  TrustCo's
securities  and any  material  interests of such  persons in  transactions  with
TrustCo is required to be disclosed in proxy statements distributed to TrustCo's
stockholders and filed with the Commission.  The Registration Statement and such
reports,  proxy  statements  and  other  information  should  be  available  for
inspection at the public  reference  facilities  of the  Commission at 450 Fifth
Street,  N.W.,  Washington,  D.C.  20549,  and at the  regional  offices  of the
Commission  located at Seven World Trade Center,  Suite 1300, New York, NY 10048
and 500 West Madison Street,  Suite 1400, Chicago, IL 60661 (call 1-800-SEC-0330
for  hours).  Copies of such  information  should be  obtainable  by mail,  upon
payment of the Commission's  customary  charges,  by writing to the Commission's
principal office at 450 Fifth Street, N.W.,  Washington,  D.C.  20549-6009.  The
Commission  also  maintains  an  Internet  website  at  http://www.sec.gov  that
contains the Registration  Statement and the reports, proxy statements and other
information filed electronically by TrustCo.

                           FORWARD-LOOKING STATEMENTS

         This  Proxy  Statement  contains  certain  forward-looking   statements
concerning  the  financial  condition,  results of  operations  and  business of
TrustCo  following the consummation of its proposed  acquisition of Cohoes,  the
anticipated  financial and other benefits of such proposed  acquisition  and the
plans  and   objectives  of  TrustCo's   management   following   such  proposed
acquisition,  including,  without  limitation,  statements  relating to the cost
savings expected to result from the proposed acquisition, anticipated results of
operations  of the  combined  company  following  the proposed  acquisition  and
projected  earnings per share of the  combined  company  following  the proposed
acquisition.   Generally,   the  words  "will,"  "may,"  "should,"   "continue,"
"believes," "expects," "intends,"  "anticipates" or similar expressions identify
forward-looking  statements.  These  forward-looking  statements involve certain
risks and  uncertainties.  Factors  that could  cause  actual  results to differ
materially from those contemplated by the  forward-looking  statements  include,
among others,  the following  factors:  (i) cost savings expected to result from
the  proposed  acquisition  may not be fully  realized  or  realized  within the
expected time frame; (ii) operating  results following the proposed  acquisition
may be lower than expected;  (iii) competitive pressure among financial services
companies may increase significantly;  (iv) costs or difficulties related to the
integration  of the  businesses  of  TrustCo  and  Cohoes  may be  greater  than
expected;  (v)  adverse  changes in the  interest  rate  environment  may reduce
interest margins or adversely affect asset values of the combined company;  (vi)
general economic conditions,  whether nationally or in the market areas in which
TrustCo and Cohoes conduct business, may be less favorable than expected;  (vii)
legislation or regulatory  changes may adversely  affect the businesses in which
TrustCo  and Cohoes are  engaged;  or (viii)  adverse  changes  may occur in the
securities markets.

                                OTHER INFORMATION

         The  information  concerning  Cohoes,  Hudson and the  Proposed  Hudson
Merger  contained  herein has been taken from or based upon, and is qualified in
its entirety by,  publicly  available  documents on file with the Commission and
other publicly available  information.  TrustCo does not take any responsibility
for the  accuracy  or  completeness  of such  information  or for any failure by
Cohoes to disclose events that may have occurred and may affect the significance
or accuracy of any such information.

         TrustCo  is not  aware of any  other  matter  to be  considered  at the
Special Meeting.  However, if any other matter properly comes before the Special
Meeting,  TrustCo  will  vote all  proxies  held by it as  TrustCo,  in its sole
discretion, may determine.

                              TrustCo Bank Corp NY

Dated: July 31, 2000



                                       12


         If you have any  questions  or need  assistance  in voting your shares,
please call:

                    Georgeson Shareholder Communications Inc.
                           17 Water Street, 10th Floor
                            New York, New York 10004

                            Toll Free: 1-800-223-2064











                                      13




                                   SCHEDULE I

                SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS,
                       DIRECTORS AND MANAGEMENT OF COHOES

         According to  information  contained in the proxy  statement/prospectus
filed by Hudson and Cohoes  with the SEC with  respect  to the  Proposed  Hudson
Merger,  as of June 22, 2000, there were 7,912,255 shares of Cohoes Common Stock
outstanding.  Pursuant to the Hudson Option Agreement,  Cohoes granted Hudson an
option  to  purchase  up  to  1,574,538  shares  of  Cohoes  Common  Stock.  The
information  concerning  Cohoes and the Proposed Hudson Merger  contained herein
has been taken from or based upon publicly available  documents on file with the
Commission and other publicly available  information.  TrustCo does not take any
responsibility  for the accuracy or completeness of such  information or for any
failure by Cohoes to disclose  events that may have  occurred and may affect the
significance or accuracy of any such information.

         The  following  table sets forth  certain  information,  taken from the
Cohoes proxy  statement for its 1999 Annual Meeting of  Shareholders,  regarding
the  beneficial  ownership of Cohoes Common Stock as of September 1, 1999 by (a)
each of Cohoes' current directors, (b) each of the named executive officers, (c)
all of Cohoes' directors and executive  officers as a group, and (d) each person
who, to Cohoes'  knowledge,  beneficially  owned more than 5% of the outstanding
Cohoes Common Stock as of such date:



                                                                                              Percent Of
                                                          Shares Of Common Stock             Outstanding
             Name of Beneficial Owner                    Beneficially Owned (F1)          Common Stock (F2)
- ---------------------------------------------------- --------------------------------- -------------------------

                                                                                         
Cohoes Bancorp, Inc. Employee Stock Ownership Plan           744,455 F3:                         8.2%
75 Remsen Street,
Cohoes New York 12047

Wellington Management Company, L.L.P.                        908,100 F4:                        10.0%
75 State Street
Boston, Massachusetts 02109

Harry L.  Robinson,  Director,  President and Chief          164,989 F5:                          *
Executive Officer

Arthur E. Bowen, Director                                    29,902 F6:                           *

Peter G. Casabonne, Director                                 16,402                               *

Michael L. Crotty, Director                                  16,771                               *

Chester C. DeLaMater, Director                               36,402 F7:                           *

Frederick G. Field, Jr., Director                            17,677 F8:                           *

Duncan S. MacAffer, Director                                 23,241 F9:                           *

J. Timothy O'Hearn, Director                                 31,555 F10:                          *






                                                                                           
R. Douglas Paton, Director                                   27,423 F11:                          *

Walter H. Speidel, Director                                  31,902 F12:                          *

Donald A. Wilson, Director                                   19,602 F13:                          *

Richard A. Ahl,  Executive  Vice  President,  Chief          98,689 F14:                          *
Financial Officer and Secretary

Albert J. Picchi,  Senior Vice  President of Cohoes          37,042 F15:                          *
Savings Bank

Directors  and  Executive  Officers  of Cohoes  and          551,597 F16:                        6.1%
Executive  Officers of Cohoes  Savings  Bank,  as a
group (13 persons)


FN:
- --------------------
F1:    Amount  includes shares held directly,  as well as shares  allocated to
such individuals  under the Cohoes Bancorp,  Inc.  Employee Stock Ownership Plan
(the  "ESOP"),  and other shares with respect to which a person may be deemed to
have sole voting and/or  investment power. The table also includes 10,402 shares
awarded  in July  1999 to each  non-employee  director  pursuant  to the  Cohoes
Recognition and Retention Plan.

F2:    Based  upon  9,075,588  shares  outstanding  on  September 1,  1999.  An
asterisk ("*") means that the percentage is less than 1%.

F3:    Excludes  18,363 shares allocated to ESOP  participants.  First Bankers
Trust Company,  the trustee of the ESOP, may be deemed to own  beneficially  the
unallocated shares held by the ESOP. Unallocated shares and allocated shares for
which no voting  instructions  are received are voted in the same  proportion as
allocated shares voted by participants.

F4:    Wellington Management Company, L.L.P. reports on a filing under Section
13(f) of the  Securities  Exchange Act of 1934 that as of June 30, 1999,  it has
investment power over these shares.  Details as to the ownership as of September
1, 1999 are unknown.

F5:    Includes 90,000 unvested RRP shares awarded in July 1999; 21,000 shares
owned by Mr. Robinson  through Cohoes Savings Bank's 401(k) Plan;  49,000 shares
owned by The  Cohoes  Savings  Bank  Rabbi  Trust of which Mr.  Robinson  is the
beneficiary; and 689 shares allocated to Mr. Robinson in the ESOP.

F6:    Includes  7,000 shares owned by The Cohoes  Savings Bank Rabbi Trust of
which Mr. Bowen is the  beneficiary  and 1,000  shares  owned by a  testamentary
trust of which Mr. Bowen's wife is Trustee.

F7:    Includes 1,000 shares owned by Mr. DeLaMater's spouse.

F8:    Includes 3,277 shares owned by Mr. Field's spouse.


F9:    Includes  2,627  shares owned by an  intervivos  trust of which
       Mr. MacAffer is trustee.

F10:   Includes 1,700 shares owned directly by Mr. O'Hearn's children.

F11:   Includes  11,835 shares owned by The Cohoes Savings Bank Rabbi Trust of
which Mr. Paton is the beneficiary.

F12:   Includes 500 shares owned directly by Mr. Speidel's son.

F13:   Includes  1,100 shares owned by The Cohoes  Savings Bank Rabbi Trust of
which Mr. Wilson is the beneficiary.

F14:   Includes  45,000  unvested RRP shares awarded in July 1999; 4000 shares
owned by Mr. Ahl through Cohoes  Savings Bank's 401(k) Plan;  9,000 shares owned
by The  Cohoes  Savings  Bank Rabbi  Trust of which Mr. Ahl is the  beneficiary;
25,000 shares owned by Mr. Ahl's spouse;  and 689 shares allocated to Mr. Ahl in
the ESOP.

F15:   Includes 22,500 unvested RRP shares awarded in July 19999; 4,648 shares
owned through the Cohoes Savings Bank's 401(k) Plan; and 468 shares allocated to
Mr. Picchi in the ESOP.

F16:   This  total  includes  shares  beneficially  owned by all directors and
executive  officers listed in the table. All RRP shares,  whether or not vested,
are included.










                                   SCHEDULE II

           INFORMATION CONCERNING THE DIRECTORS AND EXECUTIVE OFFICERS
              OF TRUSTCO AND OTHER PERSONS WHO MAY SOLICIT PROXIES

      The  following  table  sets forth the name and title of persons  who may
 be deemed to be  participants on behalf of TrustCo in the solicitation of
 proxies from the stockholders of Cohoes.

                   DIRECTORS AND EXECUTIVE OFFICERS OF TRUSTCO

           Name                                Positions
- ------------------------------------------------------------------------

Robert A. McCormick              President, Chief Executive Officer and Director
Barton A. Andreoli               Director
Lionel O. Barthold               Director
M. Norman Brickman               Director
Joseph Lucarelli                 Director
Nancy A. McNamara                Vice President and Director
Dr. Anthony J. Marinello         Director
James H. Murphy, D.D.S.          Director
Richard A. Murray, Jr.           Director
Kenneth C. Peterson              Director
William D. Powers                Director
William Purdy                    Director
Robert T. Cushing                Vice President and Chief Financial Officer
William F. Terry                 Secretary and Director


       As  of the date of this  Proxy  Statement,  TrustCo  beneficially  owns
100,000  shares of Cohoes  Common  Stock and 108,500  shares of common  stock of
Hudson.  Other than as set forth herein, as of the date of this Proxy Statement,
neither TrustCo nor any of the other participants listed in this Schedule II has
any interest, direct or indirect, by security holdings or otherwise, in Cohoes.










                                    IMPORTANT

     If your  shares are held in your own name,  please  sign,  date and return
the  enclosed  GOLD proxy card today.  If your shares are held in "Street-Name,"
only your  broker or bank can vote your  shares and only upon receipt of your
specific  instructions.  Please  return the  enclosed  GOLD proxy card to your
broker or bank and contact the person responsible for your account to ensure
that a GOLD proxy is voted on your behalf.

         Do not sign any white proxy card you may receive from Cohoes.

         If you have any questions or need assistance in voting your shares,
         please call:

                    Georgeson Shareholder Communications Inc.
                           17 State Street, 10th Floor
                            New York, New York 10004

                            Toll Free: 1-800-223-2064
















                APPENDIX A

            THIS PROXY IS SOLICITED ON BEHALF OF TRUSTCO BANK CORP NY
    IN OPPOSITION TO THE SOLICITATION BY THE COHOES BANCORP, INC. BOARD OF
                DIRECTORS FOR THE SPECIAL MEETING OF STOCKHOLDERS
                             OF COHOES BANCORP, INC.
                          TO BE HELD ON AUGUST 17, 2000

The undersigned  stockholder of Cohoes Bancorp,  Inc. ("Cohoes") hereby appoints
William F. Terry and Robert T.  Cushing and each or any of them,  attorneys  and
proxies of the undersigned,  with full power of substitution, to vote all of the
shares of common  stock of Cohoes which the  undersigned  is entitled to vote at
the Special  Meeting of Stockholders of Cohoes to be held on August 17, 2000, at
the Century  House,  997 New Loudon Road,  Latham,  New York at 3:00 p.m.  local
time, and at any  adjournments,  postponements,  continuations  or reschedulings
thereof  (the  "Special  Meeting"),  with all the powers the  undersigned  would
possess if personally present at the Special Meeting.

           TRUSTCO RECOMMENDS THAT YOU VOTE AGAINST PROPOSAL 1 BELOW.

         1.       Adoption of the Agreement and Plan of Merger,  dated as of
                  April 25, 2000, between  Hudson River Bancorp, Inc. and Cohoes
                  Bancorp, Inc.

                    FOR    [   ]       AGAINST    [   ]         ABSTAIN    [   ]

         2.       In their discretion, upon such other matters as may properly
                  come before the Special Meeting.

[X]  PLEASE MARK YOUR VOTE AS THIS EXAMPLE.       (CONTINUED AND TO BE
                                                  SIGNED ON REVERSE SIDE.)





This proxy when properly executed will be voted in the manner directed herein by
the undersigned stockholder and at the discretion of the proxy holders as to any
other business that may properly come before the special meeting.  If you do not
indicate  how you want to vote,  your proxy  will be  counted as a vote  AGAINST
adoption of the Agreement and Plan of Merger with Hudson River Bancorp, Inc.

PLEASE  COMPLETE,  EXECUTE  AND RETURN  THIS  PROXY  PROMPTLY  IN THE  ENCLOSED,
POSTAGE-PREPAID,  BUSINESS REPLY ENVELOPE.  THIS PROXY REVOKES ALL PRIOR PROXIES
GIVEN BY THE UNDERSIGNED WITH RESPECT TO THE MATTERS COVERED HEREBY.


                                                DATED

- ------------------------------  ---------------------------------------------
                                                SIGNATURE(S)



                                ---------------------------------------------

                                               SIGNATURES, IF HELD JOINTLY

                                               Please sign your name exactly
                                               as it appears hereon. When
                                               signing as attorney, executor,
                                               administrator trustee or
                                               guardian, please give your full
                                               title. If a corporation, please
                                               sign in full corporate name  by
                                               the president or other authorized
                                               officer.  If a  partnership,
                                               please sign in  the  partnership
                                               name by authorized person(s).

If you need  assistance  in voting  your  shares,  please call  TrustCo's  proxy
solicitor,    Georgeson   Shareholder    Communications   Inc.,   toll-free   at
1-800-223-2064.