Alright, I'm using a CreateMutex for a program to make sure that it isn't already opened, but I'm having problems with making sure another application is open. I have one program that creates the mutex, and in another program it tries to get access to the same mutex to see if it's open, but it doesn't seem to be working. Can only the same program see its own mutex, or should I do something other than mutex? I know I can always use FindWindow, etc, but is there another, preferably better way?