Cohoes Bancorp., Inc. and Hudson River Bancorp., Inc. Shareholders:

                               WE'RE NOT TRYING TO
                                STOP SOMETHING ...

                                 WE'RE TRYING TO
                                 START SOMETHING

The  directors  of both Cohoes  Bancorp,  Inc. and Hudson  River  Bancorp,  Inc.
unconditionally  rejected  TrustCo  Bank Corp's  acquisition  offers in favor of
their own merger.

They did so even  though  Trustco's  offers  would  give  their  shareholders  a
substantially greater return than their proposed merger.

               Who Really Benefits from the Cohoes/Hudson Merger?

     Directors of Cohoes receive restricted stock . Estimated value of $107,000*
     per director.

     The CEO of Cohoes receives restricted stock. Estimated value $853,000*

     The CEOs of both Cohoes and Hudson receive six-year employment agreements.

     Directors  who are not  elected to the new board may receive up to $189,000
     each over the next six years.

     The CEO of Hudson River is entitled to $3,000,000 if not elected  co-CEO or
     CEO of the new company beginning three years after the merger.

     Upon merger, directors of Cohoes receive an additional 7,490 stock options.


TrustCo remains committed to its offers to the shareholders of Cohoes and Hudson
River. Trustco's offers provide the shareholders of both companies an attractive
premium over market values and. based on historical rates, the shareholders
would receive a substantial increase in their dividends.

TrustCo  has the  financial  strength  to make its  offers  work,  and to insure
independent, community-based banking for many years to come.




                               The TrustCo offers.
             Better for the shareholders. Better for the community.


TrustCo Bank Corp NY intends to file Tender Offer  Statements  and  Registration
Statements with the United States Securities and Exchange Commission because its
offers to acquire Cohoes  Bankcorp.,  Inc. and Hudson River Bancorp.,  Inc. have
been rejected.  We urge investors to carefully read these  documents at the time
they are filed  because they will contain  important  information  regarding the
proposed  acquisitions.  These  documents  will  be  available  for  free to any
investor  at the United  States  Securities  and  Exchange  Commission  web site
(www.sec.gov).  Shareholders  of TrustCo,  Cohoes and Hudson  River may obtain a
free copy of these  documents upon written  request to TrustCo Bank Corp NY, 320
State Street, Schenectady, New York 12305, Attention: Secretary.

*The above  estimates  were  based on a closing  price for HRBT of $11.875 as of
6/30/00.  The above  information  was  extracted  from Form  S-4/A  Registration
Statement Hudson River Bancorp, Inc. filed 6/30/00.