Anti-malware links
Trojan Remover
MalwareBytes
Superantispyware
http://www.superantispyware.com/
The makers of Superantispyware now have a free online scanning option.
http://www.superantispyware.com/onlinescan.html
Due to the popularity of some of these utilities such as MalwareBytes, malware will prevent these applications from launching. One trick is to rename the main executable to another value. This sometimes allows the utility to load. Booting into Safe Mode with Networking support is another common procedure to use.