Mutex - Good pattern?

Just for my reference

http://stackoverflow.com/questions/229565/what-is-a-good-pattern-for-using-a-global-mutex-in-c/229567#229567

This below link for creating a single instance application(referencing it to 'ReleaseMutex' method should force the garbage collector to leave it alone)
http://stackoverflow.com/questions/777744/how-can-i-check-for-a-running-process-per-user-session