How can I get the path of a Windows "special folder" for a specific user?

Question

Inside a service, what is the best way to determine a special folder path (e.g., "My Documents") for a specific user? SHGetFolderPath allows you to pass in a token, so I am assuming there is some way to impersonate the user who's folder you are interested in.

Is there a way to do this based just on a username? If not, what is the minimum amount of information you need for the user account? I would rather not have to require the user's password.

(Here is a related question.)

Answer 1

Please, do not go into the registry to find this information. That location might change in future versions of Windows. Use SHGetFolderPath instead.

http://msdn.microsoft.com/en-us/library/bb762181(VS.85).aspx

Edit: It looks like LogonUser will provide the token for the other user that you need.