[cvsnt] Local access to network share not supported

[Jürgen Melles]

Hello,

i upgraded from wincvs WinCvs13b20-3 to WinCvs20-2.
But now every action is followed by this message:

cvs -z9 diff -- 
framework\externalServices\oleGateways\PacOLEInternetExplorer.cls (in 
directory C:\Work_PC\Edit\JUERGEN\AVV\)
cvs [diff aborted]: Local access to network share not supported (Use -N to 
override this error).

My CVROOT is on a NT-Fileserver.
All root files in the cvs directories point to that 
//fileserver/work_pc/avv/cvs.

If i try to enter a CVSROOT in the login-settings this message is given:

cvs -z9 -d :ntserver://fileserver/work_pc/avv/cvs login 
cvs login: bad CVSROOT - Hostname required: 
:ntserver://fileserver/work_pc/avv/cvs
cvs [login aborted]: Bad CVSROOT.


Does anybody have a hint for a resolution?

Thanks in advance,
   Juergen