The request failed with HTTP status 401: Unauthorized "System.Net.WebException: The request failed with HTTP status 401: Unauthorized".

The request failed with HTTP status 401: Unauthorized
"System.Net.WebException: The request failed with HTTP
status 401: Unauthorized".

If you use an authentication on your webservice like
Integrated Windows Authentication, you may have
to pre-authenticate before using your webservice:

WebService.webClass myWC= new WebService.webClass();

myWC.PreAuthenticate = true;

myWC.Credentials = System.Net.CredentialCache.DefaultCredentials;

posted on Friday, January 30, 2004 8:37 AM on "Heybo Blog"
http://heybo.com/weblog/posts/245.aspx