[help] Visual c++ program for detecting a process running or not

hello,

i want to detect the status of process running in the system using visual c++. i have visual studio 2008 in windows 7 rc.
i have the basic knowledge of c++ but i dont have any knowledge of .net platform.

i came to know that psapi.dll can be used for this purpose. but the problem is that i have never used such an advance programming (i have done the basic like looks, conditions, classes, file handling, etc. mostly in turbo c++ and some visual c++ also).

so can u provide some tutorial for psapi.dll and how to use it with visual c++ 2008. please help me.

btw thanks

rahul