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Editorial Team
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Asked: 2026-05-13T01:21:17+00:00

I have an assembly that contains a function that could be called from IIS

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I have an assembly that contains a function that could be called from IIS or from a console app.

Because of this I have opted for the following to get the path:

System.IO.Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().Location)

obviously this will return the bin directory in the case of the function being called from IIS.

I intend to create a txt file on this path. Is it such a bad idea to have text files sitting in the bin directory? Please give valid objections (if any) why this could cause problems.

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1 Answer

  1. Editorial Team

    Assembly.Location can return surprising results, e.g. if shadow copying is turned on (for instance, when running through NUnit), or when running from a location not on the local file system (you can run .NET apps over HTTP).

    AppDomain.CurrentDomain.BaseDirectory is a safer option, as it returns the original path prior to shadow copying (although in the case of HTTP deployment I think it returns the directory where ieexec.exe is located).

    The safest option is to embed whatever data you need as a resource within the assembly, and use Assembly.GetManifestResourceStream to access it at runtime.

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