为什么我不能在64位机上正确读取HKCU的32位注册表值?

I'm stumped on a windows 7 registry problem and while various questions and answers get me some of the way there, nothings I've seen addresses my particular issue. I don't know if other windows versions affects this problem, but we all have win7x64 machines.I'm stumped on a windows 7 registry problem and