Simply put, you are trying to remove a program. Keep it simple. Since you own the computer you don't have to be sneaky...
I would try a file search under "spectator.*" and see what turns up. See if there is an unistaller, if not, delete the .exe file, (or the whole folder). Or the .dat file (it may operate bur won't collect data).
Next I would try a registry search.:
start/run/regedit
If you find something, make a backup copy of your registry (export to _____). Read up on how to import a registry from a set of floppies or a CD. (Bootable?)
Then delete the line in the registry. Do note the line may be a red herring and it may be hidden else where under another name.
MY .02 but there are many people on this board who know much more than me!
PS: We love good detective stories!