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Debugging A Web Site With A Host Header

If you have downloaded the RTM version of SP1 for Visual Studio 2008, you may get an error when trying to debug a Web Site with a host header on IIS 6 or IIS 5.1. The error message reads: "Unable to start debugging on the web server. An authentication error occurred while communicating with the web server. Please see Help for assistance." (Figure 1: Error Message when debugging a Web Site with a host header. In this case, the host header is www.test.com ) Scope This issue only appears on Web Sites configured with a host header on machines with IIS 6 or IIS 5.1 and the RTM version of the .Net Framework 3.5 SP1. Background Lukasz Pawlowski, a program mangager on the Reporting Services team, published a great blog post describing the Read More...

Read the complete post at http://blogs.msdn.com/webdevtools/archive/2008/08/13/debugging-a-website-with-a-host-header.aspx