List Running Programs under Windows

[Joe Aspelund]

I am programming for Windows (Windows XP more specifically) and I am
trying to genrate a list of the currently running programs. Similar to
the "Processes" tab of "Task Manager". A little clarification of the
program: I want it to change the way it runs depending on other
programs that are currently running. I just need to generate a list of
sorts.
Thanks for any assistance.