CreateProcess has a PROCESS_INFORMATION structure as the last parameter. You can use the dwThreadId member of this structure and the WM_QUIT message to close a window using the PostThreadMessage API. ::PostThreadMessage(pi.dwThreadId, WM_QUIT, 0, 0); «_Superman_» I love work. It gives me something to do between weekends.

Thank you very much. This works fine. But say if I have 2/3 instances of same application, how do I extend this to close particular window?

I think that's the only way. (up to my knowledge) because GetExitCodes just get the termination status. May be after waiting , you can check for STILL_ACTIVE status. But your design sounds little bad. What is that you are trying to do? May be you could synchronize your processes with kernel objects like Events. That would be a better solution. He never answers anyone who replies to him. I've taken to calling him a retard, which is not fair to retards everywhere.-Christian Graus

Hello Punav, The following links will help you. 1) What is ID3 (v1)?[^] 2) Parsing ID3 tags.[^] Regards, Jijo. _____________________________________________________ http://weseetips.com[^] Visual C++ tips and tricks. Updated daily.