Larry,
I looked for it too. It's part of the Microsoft SDK (Software Developer's Kit), which most people don't have access to. I don't know if it is available as a separate download.
The references to viruses seem to be just information that some viruses attempt to shut down or disable certain programs, spyxx.exe being one of many. The SDK spyxx.exe is not the virus.
However with that said, I must congratulate you on your thoughtfulness about reporting back to the group. As a warning to others, I personally would never run any .exe from anywhere but a trusted source. If someone finds spyxx.exe downloadable somewhere make sure you trust the source, your computer's life can depend on it.
= vonsmith =