On Trying to Debug an application, by the F5 key I get the error: “Error while trying to run project: Unable to start debugging on the web server. Catastrophic failure”?
This issue occurs if the account that is used to run the ASP.NET Worker process (by default, the ASPNET user account) is not assigned the “Impersonate a client after authentication” user right in the “Local Security Policy” settings. This issue may occur when you install Microsoft Visual Studio .NET after you install Windows 2000 Service Pack 4 (SP4) on the computer. In this situation, the ASPNET account is not assigned the “Impersonate a client after authentication” user right in the “Local Security Policy” settings.To resolve it, please use the method at: To work around the problem, manually assign Impersonate a client after authentication to the IWAM account.
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