When running Turnkey, you will want to ensure that the user running the IIS Turnkey application and the IIS MDriven Server application has access to the file system. Do this by allowing the local user "IIS APPPOOL\{app pool name}" full control (including the ability to create directories) over the application root.

If you do not want to allow complete control of the application root, the following may be an alternative:

• AppData - full control during application installation. You may limit the read/write access after installation and model upload are complete.
• Logs - read/write access.
• ModeCodeAssemblies - only used for CodeDress.

This applies to both the MDrivenServer and Turnkey.

This is particularly important when using CodeDress, since the assemblies need to be copied.