Hi Noremac,

For your scenario, you need to pass the windows identity from the ASP.NET
application to the webservice application without enable impersonate in
ASP.NET web application ,correct?

I assume that your web application and webservice are on the same server
machine(other wise, we can not forward client authenticated user token
across multiple machine boundary--- double hop).  

Then, if you do not to imperonate your ASP.NET application through
<web.config>, you can consider the following means:

**use programmatic impersonate. Thus, you can put impersonate code only at
the function where you'll call the webservice. Since you've used "windows"
authentication in ASP.NET web app, you can use the authenticated user
identity(through Context.User.Identity) to perform the impersonate. Here
are two articles that may help you:

#How To: Use Windows Authentication in ASP.NET 2.0
http://msdn2.microsoft.com/en-us/library/ms998358.aspx

#How To: Use Impersonation and Delegation in ASP.NET 2.0
http://msdn2.microsoft.com/en-us/library/ms998351.aspx

How do you think?

Sincerely,

Steven Cheng

Microsoft MSDN Online Support Lead



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