I'm trying to write a program that tests certain programs to see if they're still running. I suppose I could use the WaitForSingleObject call, but will that say the program is running even if it is frozen? I've been debating, in light of this question, whether or not MsgWaitForMultipleObjects would elleviate this problem. If someone could clarify the uses of these two calls I would appreciate it. Also any other solutions to my problem would be useful as well.