How can I figure out if a file is in a folder that has been SUBST’ed or is located in a user folder using C#?
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How can I figure out if a file is in a folder that has been SUBST’ed or is located in a user folder using C#?
I think you need to P/Invoke QueryDosDevice() for the drive letter. Subst drives will return a symbolic link, similar to \??\C:\blah. The \??\ prefix indicates it is substituted, the rest gives you the drive+directory.