How to catch windows title by windows service?

Hi all guru,

I'm working with new project and it make me confuse. My project is a windows service, such as a Gamguard program. It find and kill processes of hack, spam programs by execute file name, keywords. But when users rename executing file, process name also is changed therefore my windows service purpose is unsuccessful. I replace it by catching title of hack executing file. But it's only ok when i make it with windows form. Why cannot windows service catch windows title? How to catch windows title by windows service???

Pls help me!!!

Why would users want to rename hack and spam programs?

Just becasue my Gameguard program find to kill hack programs of gamer. When their program don't run, they cannot hack. They will have to find other ways. And they will try to rename hack file.