Copied from SUPERAntiSpyware Homepage:
SUPERAntiSpyware Free Edition is 100  Free and will detect and remove thousands of Spyware, Adware,
Malware, Trojans, KeyLoggers, Dialers, Hi-Jackers, and Worms. SUPERAntiSpyware features many unique
and powerful technologies and removes spyware threats that other applications fail to remove.
SUPERAntiSpyware Free Edition does not include real-time blocking or scheduled scanning.
Features:
Quick, Complete and Custom Scanning of Hard Drives, Removable Drives, Memory, Registry, and More   
Detect and Remove Spyware, Adware, Malware, Trojans, Dialers, Worms, KeyLoggers, HiJackers and many
other types of threats.  
Trust Items and Exclude Folders for complete customization of scanning
Changelog:
04/29/2009 4.26.1002
Technology Changes 
Definition server connection enhancements
Enhanced Vundo detection/removal
Updated technology to handle the hi-jacked USERINIT.EXE
Numerous technology additions to the scanning engine to deal with new rootkit infections
Enhanced Diagnostic Abilities
03/26/2009 4.26.1000 
Technology Changes
Technology to handle the hi-jacked USERINIT.EXE
Smart Definitions Enhanced to reduce size and be more efficient
Numerous technology additions to the scanning engine to deal with new rootkit infections
Enhanced Diagnostic Abilities
Enhanced DDA  Direct Disk Access 
Enhanced DRA  Direct Registry Access 
Improved Kernel Drivers