Using the Team System web services from code

Hi,

I want to thank everybody who helped me out so far with my previous calls for help.

At the moment I'm trying to develop some custom reports and I want to use the Team System web services for this. Currently I run my code by using a simple Windows Forms application where I can enter the my Team project.

When I execute the method GetListOfBuilds from the BuildStore.asmx in internet explorer, I don't encounter problems. But when I execute this method from code, I get an

"The request failed with HTTP status 401: Unauthorized." Does anyone have any idea, what can be the problem Runs Visual Studio 2005 under another account than the one I use to log on to Windows Must I use impersonation

Thanks in advance for your help.

Kind regards,

Karine Bosch