As a network admin at a school district, spyware has become our biggest workstation problem. We have found that most spyware removal tools are themself, spyware. The best one we have found is Microsoft's NoAdware. It is not perfect. If you load it with a clean OS install, it works great, if you have spyware/hi-jackers, then it will work ok untill you can do a clean install. We have around 700 computers and voice over IP phones, with about 10 servers and only two of us to keep them going so adware and spyware drive us nuts. We use Symantec Corpriate and push out the updates with a logon script and have not had a virus in 2 years.