CounterSpy is a powerful spyware and malware remover but treads lightly on system resources. Now, you don't have to choose between PC security and PC performance. With CounterSpy you get:

Advanced Anti-Malware technology

Kernel-level 24/7 Active Protection

Boot Time Scans kill rootkits

Small memory footprint

Runs great on Windows Vista and XP!

Program Information Category: Tools and Utilities Type: Shareware Version: 4.0.3248 Size: 11.8MB Works on: Windows Product page: here