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What is the file location of applicationhost.config in the different versions of IIS?

What is the exact file path of the applicationhost.config file in the different versions of IIS, for example: IIS 7, 7.5, 8, 8.5 and 10?

Solution

  • For the "big" IIS versions since IIS 7, the location is always the same:

     %windir%\System32\inetsrv\config\applicationHost.config

    For IIS Express there is one per user, the default location is:

    %USERPROFILE%\Documents\IISExpress\config\applicationhost.config

    again it's the same for all versions.

    You can run multiple instances of IIS Express per user, you would need to specify the location of the applicationhost.config as the command line parameter /config for iisexpress.exe