EXHIBIT 10.81
To all whom These Presents shall come or may Concern,

     Greeting:  Know Ye, That  Sandata  Technologies,  Inc and  Sandsport,  Inc.
hereinafter designated collectively as the Releasor, for and in consideration of
the sum of ten ($10.00) dollars (U.S.) and other good and valuable consideration
paid by National Medical Health Card Systems,  Inc.,  hereinafter  designated as
the Releasee,  the receipt and sufficiency of which is hereby acknowledged,  has
remised,  released and forever  discharged,  and by these  Presents does remise,
release  and  forever  discharge  the  said  Releasee  of and  from  all  debts,
obligations,    reckonings,   promises,   covenants,   agreements,    contracts,
endorsements,  bonds,  specialties,  controversies,  suits,  actions,  causes of
actions, trespasses,  variances, judgments, extents, executions, damages, claims
or demands, in law or in equity,  which against the said Releasee,  the Releasor
ever had, now has or hereafter can,  shall,  or may have, for, upon or by reason
of any matter, cause or thing whatsoever, from the beginning of the world to the
day of the date of these Presents.

     More  particularly,  any  claim  concerning,  arising,  or  related  to the
ownership by Releasor of any of Releasee's Intellectual Property (as hereinafter
defined).

     For the purposes of this Release,  "Intellectual Property" means any United
States,  foreign,  international  and state:  patents  and patent  applications,
industrial  design  registrations,  certificates of invention and utility models
(collectively,  "Patents");  trademarks, service marks, and trademark or service
mark registrations and applications,  trade names, logos,  designs,  slogans and
general  intangibles of like nature,  together with all goodwill  related to the
foregoing  (collectively,  "Trademarks");  Internet  domain  names;  copyrights,
copyright  registrations,  renewals  and  applications  for  copyrights  and the
Software (collectively,  "Copyrights");  Software, technology, trade secrets and
other  confidential  information,  know-how,  proprietary  processes,  formulae,
algorithms,   models  and  methodologies,   rights  of  privacy  and  publicity,
including,  but not limited to, the names,  likenesses,  voices and biographical
information of real persons,  and all license  agreements  and other  agreements
granting rights relating to any of the foregoing.  "Software"  means any and all
(i)  computer  programs,  including  any and  all  software  implementations  of
algorithms,  models and  methodologies,  whether in source  code or object  code
form,  (ii)  databases,  compilations  and  any  other  electronic  data  files,
including  any  and  all  collections  of  data,  whether  machine  readable  or
otherwise,   (iii)   descriptions,   flow-charts,   technical   and   functional
specifications,  and other work product used to design, plan, organize, develop,
test,   trouble-shoot   and  maintain  any  of  the   foregoing   and  (iv)  all
documentation,  including  technical,  end-user,  training and  trouble-shooting
manuals, and materials relating to the foregoing.

     Wherever in this instrument any party shall be designated or referred to by
name or general  reference,  such  designation  is intended to an shall have the
same effect as if the words "trustees, executors,  administrators,  heirs, legal
representatives,  successors and assigns" had been inserted after each and every
such  designation and all the terms,  covenants and conditions  herein contained
shall be for and shall  inure to the  benefit of and shall  bind the  respective
parties hereto, and their trustees, executors,  administrators,  heirs, personal
or legal representatives, successors and assigns, respectively.

     In all references herein to any parties the use of any particular gender or
the plural or singular number is intended to include the  appropriate  gender or
number as the text of the within instrument may require.

     This Release shall be interpreted, construed, and enforced according to the
applicable laws of the state of New York.

     This release is  confidential  and neither this Release nor its  respective
terms may be  disclosed  or  revealed  to  persons  other  than to the  parties'
accountants, attorneys, except as required by law or as approved by Releasor and
Releasee.


     In Witness Whereof, the said Releasor has signed and sealed this instrument
or caused these presents to be signed this 30th day of October, 2003.


                                                     SANDATA TECHNOLOGIES, INC.


                                                     By: /s/ Bert E. Brodsky
                                                       Name: Bert E. Brodsky
                                                   Title: Chairman of the Board


                                                    SANDSPORT, INC.

                                                     By:  /s/ Bert E. Brodsky
                                                        Name: Bert E. Brodsky
                                                       Title: Chairman of the
                                                                Board