EXHIBIT 10.17.1 [LETTERHEAD OF INLINE CONNECTION CORPORATION APPEARS HERE] CAIS, Inc. March 4, 1998 1232 22nd St Washington, DC 20037 Dear Sirs: Inline Connection Corporation hereby freely and permanently releases CAIS from the restrictions relating...

 
                                                                 EXHIBIT 10.17.1

          [LETTERHEAD OF INLINE CONNECTION CORPORATION APPEARS HERE]



CAIS, Inc.                                                      March 4, 1998
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Dear Sirs:

Inline Connection Corporation hereby freely and permanently releases CAIS from 
the restrictions relating to the countries of Germany and Austria, that are 
included in the license agreement executed between CAIS and Inline and dated 
November 5, 1996.


Sincerely yours,


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President, Inline Connection Corp