- Spyware Doctor v4.0.0.2620 (32-bit) - Works very slowly, provides only minimal support for windows vista, new version 5.0 currently in beta stage.
- Spyware Doctor v4.0.0.2621 (32bit) - works just fine on my 3 yr old system. The minor problems it had running under Win XP did not reappear under Vista.
