Those are command line programs. That's why your getting a command window "flash'. You need to run them from a cmd prompt. Try running them in compatibility mode.
That being said, expand.exe (the extractor for those packed files) should already be part of Windows 7 as it came with XP. They might even have added a compressor but I'm not in the mood to dig around my system folder right now. If they are both there, you don't need the SDK.
7-Zip will also extract those types of files via a GUI.