the 2nd line needs to direct towards your SC Directory (so C\"Games\Starcraft"\"StarCraft.exe" for a lot of you)
When you save the file, save it as a .bat file and use that to launch Starcraft. It will terminate explorer while SC is running, and when you close SC explorer automatically restarts. This is the only fix i have found that works for my setup; Windows 7, Build 7100 w/ Nvidia 7950 GT.
Hope this works for you!
This worked for me, Windows 7 x64 Professional