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Editorial Team
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Asked: 2026-05-15T21:11:57+00:00

I have a virtual directory setup in IIS6. This maps to a shared network

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I have a virtual directory setup in IIS6. This maps to a shared network drive.

I can correctly map the path using

string mappedPath = HttpContext.Current.Server.MapPath(path);

I then create a DirectoryInfo object as I want to find some files in the directory. 

DirectoryInfo updateDirectory = new DirectoryInfo(mappedPath);

But then updateDirectory.Exists is false?? I can take the string from the mappedPath and copy into Start->Run to get to the path so I know it exists. I am authenticating to the webservice using integrated windows authentication and have permissions to the necessary folders.

Is there something obvious I’m missing in the code? Or is this purely set-up and configuration of IIS etc.?

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1 Answer

  1. Editorial Team

    According to this link:

    http://bytes.com/topic/asp-net/answers/471616-server-mappath-virtual-directories

    Server.MapPath doesn’t give expected output when used against virtual directories.

    If it is server permissions and you are using Windows Authentication, make sure you have this in your config:

    <identity impersonate="true" />

    DirectoryInfo returns false on error conditions: if the folder isn’t there; you don’t have permissions; or it’s a disconnected network folder.

    Sounds like permissions of your ASP.NET worker process to me – the impersonation will solve this.

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