Spy Eraser 2
Spy Eraser is a spyware detection and removal software. It incorporates advanced and sophisticated scanning technologies, which allow it to detect threats before they affect your computer. However, you can still use the program to scan your computer for spyware and malware anytime you want. 
I guess this is not the place to emphasize the fact that any spyware detection utility can give false positives. It happened to me, as the program detected a keylogger that I previously installed on my computer. Spy Eraser allowed me to keep my keylogger so no harm was done, even though it was detected as a severe threat.
Among other interesting features, I would like to mention that Spy Eraser is able to schedule scans of a computer, keep logs of its activity and quarantine unwanted items. It uses a special quarantine folder, for disabling threats and at the same time allowing the user to restore any accidentally deleted files or registry keys.
Even though it’s disabled during the evaluation period, the program also features a live scanner called Live Guard. This scanner should be able to detect memory resident spyware, as well as programs that try to execute themselves on boot. It can monitor Internet Explorer’s menu extensions, the Windows Hosts file, as well as illegitimate changes that can be made in Windows Appinit DLLs. Each scan component can be deactivated individually, but your system won’t be protected against a set of threats anymore.