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Editorial Team
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Asked: 2026-05-26T14:44:56+00:00

Is there an easy way to see which user is causing an System.UnauthorizedAccessException to

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Is there an easy way to see which user is causing an System.UnauthorizedAccessException to be thrown?

I have a web app on domain A that runs using a specific user account from domain B (IIS 7.5 Anonymous authentication). It needs to write to a shared folder on domain B.

I have given the user account full access to the folder on domain B but I’m still getting a
System.UnauthorizedAccessException which makes me assume that it is not actually running under this account.

Is there an easy way to see what security context the application is running under? I can output any error messages where the exception is being caught.

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1 Answer

  1. Editorial Team

    I think you should probably need to grand permissions to NETWORK SERVICE user. Modify the permissions within the folder should work.

    I found this article about Setting ASPNET (Network Service) Permissions, which might help you in detail.

    Hope this help

    P.S.

    If it regarding Application Pool Identity, you might have look this one about Configuring Application Pool Identity in IIS 6.0 (IIS 6.0)

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