McAfee AVERT Stinger
Guys Did Ya try this Software?....it is Good.....Standalone and very small.
Stinger is a stand-alone utility used to detect and remove specific viruses. It is not a substitute for full anti-virus protection, but rather a tool to assist administrators and users when dealing with an infected system. It utilizes next generation scan engine technology, including process scanning, digitally signed DAT files, and scan performance optimizations
And Best of all it is Freeware.
Pretty good, but wish it was a Full fledged Antivirus.