You need quotes around it. "D:\\Program Files\\Winamp\\cc\\DMX.exe" etc.
The problem is that a lot of people install stuff into "Program Files". Thank Windows for such a retarded folder with spaces in the name. ...
WinAMP: Enable Global Hot Keys
You must rename winamp.exe to DMX.exe in order for it to launch.
OR: You can download Winamp Control Centre (winampcc.exe) and rename it which will launch WinAMP.
If you still have a DMX.exe key,...
With light leakage, if you photographing it actually makes it look worse than it actually is.
I have very minimal light leakage, maybe 1cm on a full black screen, but if I take a picture of it, it'll be like half of the screen.