A problem about WebService interop DCOM

[kozen]

hi,
I'm developing a WebService that uses a DCOM server at the same machine.
When I call a method of the DCOM, I get an "UnauthorizedAccessException:
Access denied" exception at some machine but others are ok. And invoking the
same DCOM-Component from a WinForms .NET Application is always ok.
My IIS WebService Site is an Anonymous Site.My DCOM-component's
configuration is that
Authentication level is "None";
User identity is "The interactive user".
Can you do me the favour? thanks!

Regards,

Kozen
Nari China
(e-mail address removed)