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Editorial Team
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Asked: 2026-05-26T11:16:04+00:00

I’m working on an MVC application where the end user has to upload a

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I’m working on an MVC application where the end user has to upload a file, and the application needs to put the file on a local share (C:\Files). The folder has wide open NTFS permissions (Everyone has full access), but when I try to upload the file, IIS Express barks at me, saying write access is denied. Interestingly enough, if I blow away the directory, IIS Express has no problem recreating it, it just won’t store anything in it.

It seems obvious this is a security setting with IIS Express. Can someone tell me what setting it is, where it is, and what I need to change it to so that I can get this process to work? I’ve seen a lot of similar questions, but they seem focused on NTFS permissions and the like, and I must assume that “Everyone” does in fact mean “Everyone”.

UPDATE I added the Windows 7 tag as this may be related (64 bit)

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1 Answer

  1. Editorial Team

    Can you post your upload code? This one works fine for me:

    var path = Path.Combine(Server.MapPath("~/Content/Uploads"), fileName);
file.SaveAs(path);

    The above code works for both local IIS and a live site with MVC3 installed.

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