Does ExtractToFile throw access denied?

First of all, I understand that I am using ASP.NET 4.5 with DefaultAppPool (integrated 4.0). I also configured anonymous access to the DefaultAppPool user. I have granted all access to DefaultAppPool. System.Security.Principal.WindowsIdentity.GetCurrent()gives me the same user. But when the next line works, it gives me an exception Access to the path 'XXXX' is denied.. Then, for testing purposes, I gave all the rights to the user EveryOne, but still get the same error. Here is a line of code. Pay attention to trus

        using (ZipArchive archive = new ZipArchive(zipStream))
        {
            foreach (ZipArchiveEntry file in archive.Entries)
            {
                file.ExtractToFile(location,true);
            }
        }

Here is the stacktrace,

[UnauthorizedAccessException: Access to the path 'XXX' is denied.]
   System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath) +10793558
   System.IO.FileStream.Init(String path, FileMode mode, FileAccess access, Int32 rights, Boolean useRights, FileShare share, Int32 bufferSize, FileOptions options, SECURITY_ATTRIBUTES secAttrs, String msgPath, Boolean bFromProxy, Boolean useLongPath, Boolean checkHost) +1352
   System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share) +65
   System.IO.Compression.ZipFileExtensions.ExtractToFile(ZipArchiveEntry source, String destinationFileName, Boolean overwrite) +96
   XX.XX.XX.ExtractZipFile(Stream zipStream, String location) in XX.cs:44
   XX.XX.XX.XX.XX.XX.ExtractZipFile(Stream zipStream, String location) in XXX.cs:17