I had installed Counterspy, but it interfered with regular operation of the computer, so I deinstalled it. i have since discovered that it has left behind a registry key...
HKCU\Software\Sunbelt Software\Counterspy\Alerts
which has about 613,000 subkeys! This really clogs my system, makes booting up and turning off take forever. I can only even display the subkeys with Registry Explorer 1.4. Regedit and Regedt32 choked and hanged during display. And Registry Explorer will only let me delete the subkeys one at a time.
CCleaner was suggested, but it doesn't even find a problem. It doesn't see Counterspy as a program to uninstall, and it doesn't see any registry problems.
I would be grateful for any ideas short of reinstall of XP Pro SP2.