ODBC Connection SQL Server Error

Hello, my VB app fails to connects to a SQL Server.
Server side info
SQL Server is installed in a W2000 PC configured for IIS use. It is not a PDC.
Client side info
W2000, no Access app installed.
Situation:
System DSN created with ODBC config utility works fine and connects succesfully to the server. But when a connection is tried to be made through app it fail: "Login failed, ... user(null)... Not associated with a trusted SQL Server connection"
Any suggestions ?
Thanks
Arnaldo
Arnaldo,
See if this helps
'PRB: ASP/ODBC/SQL Server Error 0x80040E4D "Login Failed for User '(Null)'"'
http://support.microsoft.com/?id=307002
Dinesh
SQL Server MVP
--
SQL Server FAQ at
http://www.tkdinesh.com
"Arnaldo" <anonymous@.discussions.microsoft.com> wrote in message
news:ADBEE679-C4F6-486C-96CB-1588892D7283@.microsoft.com...
> Hello, my VB app fails to connects to a SQL Server.
> Server side info
> SQL Server is installed in a W2000 PC configured for IIS use. It is not a
PDC.
> Client side info
> W2000, no Access app installed.
> Situation:
> System DSN created with ODBC config utility works fine and connects
succesfully to the server. But when a connection is tried to be made through
app it fail: "Login failed, ... user(null)... Not associated with a trusted
SQL Server connection"
> Any suggestions ?
> Thanks
> Arnaldo
>
>
>