How to find out the path to the Application Data of the current user from the service?

Question

Delphi

Actually the question is higher. At what the Axes can be different, it is necessary that both XP and 7 work.
It is assumed that there is a client program that stores settings in AppData, and so, the service must find them.

Answer 1

The service can run even if no user is logged into the system. Or if two are logged in (for example, one left the computer with a working client, the second logged in). Therefore, you will have to redo the architecture of the service - for example, pass settings when establishing a connection between the client and the service.