Win, Place, or Show? [GRAPHIC OMITTED: Picture of a thoroghbred horse race; "Hudson River" and "Cohoes" are neck-and-neck in the lead; "TrustCo" trails near the end of the pack.] Dear Shareholders, Customers, Future Customers and Friends: TrustCo has recently announced their desire to purchase our banks, which we believe is merely a veiled attempt to reduce banking competition in this area. TrustCo recently ran an ad comparing the performance of our three banks. UNFORTUNATELY, THEY FAILED TO MENTION THE PERFORMANCE OF THE STOCK OF EACH BANK. Myth - -------------------------------------------------------------------------------- TrustCo's growth record has resulted in superior returns for stockholders. Reality - -------------------------------------------------------------------------------- Stock performance, January 4, 1999-July 25, 2000* January 4, 1999 July 25, 2000 COHB (Cohoes Bancorp) $11.38 $13.88 +22% HRBT (Hudson River Bancorp) $11.13 $11.94 +7% TRST (TrustCo) $14.81** $12.25 -17% * Hudson River Bancorp stock started trading on July 1, 1998; Cohoes Bancorp stock started trading on January 4, 1999. Results/prices do not reflect dividends. ** After 2 for 1 stock split November 15, 1999. Myth - -------------------------------------------------------------------------------- TrustCo's earnings per share have been superior. Reality - -------------------------------------------------------------------------------- Earnings Per Share, Second Quarter 2000 COHB (Cohoes Bancorp) $ .23 HRBT (Hudson River Bancorp) $ .19 TRST (TrustCo) $ .19 WE BELIEVE OUR MERGER IS YOUR BEST TICKET TO THE "WINNER'S CIRCLE". We are confident that our combined banks will be worth far more together than any TrustCo offer and more than either of us is worth independently. (TrustCo would "pay" for our banks with overvalued TrustCo stock which is currently selling at approximately 380% of 'book value' and thus has a potential for significant downside risk). - -------------------------------------------------------------------------------- WE URGE EVERYONE TO BECOME AS INFORMED AS POSSIBLE ABOUT THE FACTS CONCERNING OUR PLANNED MERGER AND VOTE "FOR" OUR MERGER WHEN YOU RECEIVE YOUR PROXY FROM US. We also urge our shareholders to place the proxy you receive from TrustCo in the appropriate place: the trash can. - -------------------------------------------------------------------------------- Please call us if you would like more information on our planned merger. Yours truly, /s/ Harry L. Robinson /s/ Carl A. Florio - ------------------------------------ -------------------------------------- Harry L. Robinson, President and CEO Carl A. Florio, President and CEO (518) 233-6565 (518) 828-4600 [Logo of Cohoes Bancorp, Inc.] [Logo of Hudson River Bancorp, Inc.] This letter may contain forward- Hudson River has filed a looking statements within the meaning Registration Statement on Form S-4 of the Private Securities Litigation concerning the merger with the United Reform Act of 1995 that involve risk States Securities and Exchange and uncertainty. It should be noted Commission which includes the joint that a variety of factors could cause merger proxy statement/prospectus the combined company's actual results being provided to shareholders. In and experience to differ materially addition, Hudson River and Cohoes from the anticipated results or each intend to file a Solicitation/ expectations expressed in the Recommendation statement with the combined company's forward-looking United States Securities and Exchange statements. Commission in response to the Tender Offer Statement to be filed by The risks and uncertainties that TrustCo Bank Corp NY. WE URGE may affect the operations, INVESTORS TO READ THESE DOCUMENTS performance, development, growth BECAUSE THEY CONTAIN IMPORTANT projections and results of the INFORMATION. Investors are currently combined company's business include, able to obtain the Form S-4 but are not limited to, the growth of Registration Statement and will be the economy, interest rate movements, able to obtain the Solicitation/ timely development by the combined Recommendation Statement of each company of technology enhancements company when filed, free of charge at for its products and operating the SEC's website, www.sec.gov. In systems, the impact of competitive addition, documents filed with the products, services and pricing, SEC by Cohoes are available free of customer based requirements, charge from the Secretary of Cohoes Congressional legislation, at 75 Remsen Street, Cohoes, New acquisition cost savings and revenue York 12047, telephone (518) enhancements and similar matters. 233-6500. Documents filed with the Readers are cautioned not to place SEC by Hudson River are available undue reliance on forward-looking free of charge from the Secretary of statements which are subject to Hudson River at One Hudson City influence by the named risk factors Centre, Hudson, New York 12534, and unanticipated future events. telephone (518) 828-4600. Actual results, accordingly, may differ materially from management Cohoes and Hudson River and their expectations. respective directors and executive officers may be deemed to be Cohoes and Hudson River do not participants in the solicitation of undertake, and specifically disclaim, proxies to approve the Merger. any obligation to publicly release INFORMATION ABOUT THE PARTICIPANTS the results of any revisions which MAY BE OBTAINED THROUGH THE SEC'S may be made to any forward-looking WEBSITE FROM THE S-4 REGISTRATION statements to reflect the occurrence STATEMENT FILED WITH THE UNITED of anticipated or unanticipated STATES SECURITIES AND EXCHANGE events or circumstances after the COMMISSION ON JUNE 26, 2000, as date of such statements. amended. ------- Vote | FOR | the Cohoes/Hudson River merger! -------