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Is there some way to launch a process in non-elevated way from an elevated one. My setup is launched elevated and when it finalizes, it will just launch the main application. Because the setup is elevated, the main process will be elevated as well which is not desirable. What is the best solution to this?
That’s a problem, Vista/Win7 don’t appear to have an API to obtain the unprivileged user token you need to call CreateProcessAsUser(). The only solutions I’ve found involve using the task scheduler to launch the program. That doesn’t strike me as very practical.
An easy solution that jumps to mind is to use a small non-elevated helper process. It can in turn launch the elevated setup process and wait for a confirmation from that one to launch the non-elevated one. The handshake is simple enough to do this with a named mutex.