I don't care for the way the my Microsoft Windows computer changes focus between windows. I'm sure a quick change to DWM.exe (Desktop Window Manager) would make me much happier as a user. I'll even do the work myself.
Can you tell me where I can go grab the latest source code for DWM, so I can make those changes?
I don't think it's possible for a home user. And I think it's important. (If I'm wrong, I'd love to be corrected.)