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                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                  SCHEDULE 14A

           Proxy Statement Pursuant to Section 14(a) of the Securities
              Exchange Act of 1934 (Amendment No. ______________ )

Filed by the Registrant [X]
Filed by a Party other than the Registrant [ ]

Check the appropriate box:

[ ] Preliminary Proxy Statement
[ ] CONFIDENTIAL, FOR USE OF THE COMMISSION ONLY (AS PERMITTED BY
    RULE 14a-6(e)(2))
[ ] Definitive Proxy Statement
[X] Definitive Additional Materials
[ ] Soliciting Material Pursuant to Section 240.14a-12

                              JANUS INVESTMENT FUND
                              ---------------------
               (Exact Name of Registrant as Specified in Charter)

                 151 Detroit Street, Denver, Colorado 80206-4805
                 -----------------------------------------------
                    (Address of Principal Executive Offices)

                                  303-333-3863
                                  ------------
                (Registrant's Telephone No., including Area Code)

 Stephanie Grauerholz-Lofton -- 151 Detroit Street, Denver, Colorado 80206-4805
 ------------------------------------------------------------------------------
                     (Name and Address of Agent for Service)

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:

- --------------------------------------------------------------------------------
         2) Aggregate number of securities to which transaction applies:

- --------------------------------------------------------------------------------
         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):

- --------------------------------------------------------------------------------
         4) Proposed maximum aggregate value of transaction:

- --------------------------------------------------------------------------------
         5) Total fee paid:

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

[ ] Fee paid previously with preliminary materials.

[ ] 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:

- --------------------------------------------------------------------------------
         2) Form, Schedule or Registration Statement No.:

- --------------------------------------------------------------------------------
         3) Filing Party:

- --------------------------------------------------------------------------------
         4) Date Filed:

- --------------------------------------------------------------------------------
PERSONS WHO ARE TO RESPOND TO THE COLLECTION OF INFORMATION CONTAINED IN THIS
FORM ARE NOT REQUIRED TO RESPOND UNLESS THE FORM DISPLAYS A CURRENTLY VALID OMB
CONTROL NUMBER.
 SEC 1913 (04-05)



*THIS IS A REMINDER*

YOU WERE PREVIOUSLY SENT PROXY SOLICITING INFORMATION PERTAINING TO THE JANUS
MEETING OF SHAREHOLDERS. ACCORDING TO OUR LATEST RECORDS, WE HAVE NOT RECEIVED
YOUR VOTING INSTRUCTION(S) ON THE MATTERS TO BE CONSIDERED AT THIS MEETING.

Important Notice Regarding the Availability of Proxy Materials for the
Shareholder Meeting

JANUS Meeting of Shareholders
MEETING DATE: November 25, 2008
RECORD DATE: August 20, 2008

CUSIP NUMBER: ________________

ACCOUNT NUMBER: ________________

CONTROL NUMBER: ________________

You can enter your voting instructions and view the shareholder material at the
following Internet site. If your browser supports secure transactions you will
be automatically directed to a secure site.

http://www.proxyvote.com/0012345678901

To access ProxyVote, you will need the above CONTROL NUMBER, and the four-digit
PIN, you enrolled with at the time you elected to receive electronic
communications (we suggest the last four digits of your Social Security Number
or Tax ID). If you do not know your PIN, please follow the instructions below.
Internet voting is accepted up to 11:59 p.m. (ET) the day before the meeting/cut
off date. Please refer to the proxy materials, available via the link(s) below,
to confirm if a cut off date applies to this solicitation. In the event of a
discrepancy between information contained in this e-mail and the proxy material,
the proxy material will prevail.

To view the documents below, you will need the ADOBE ACROBAT Reader. To download
the Adobe Reader, click the URL address below:

http://www.adobe.com/products/acrobat/readstep2.html

The relevant supporting documentations can also be found at the following
Internet site(s):

Proxy Statement
http://ww3.ics.adp.com/streetlink_data/dirK52358/sa4257.pdf

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Your InvestorDelivery Enrollment Number is: ________________

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