Spyware/Adware Prevention In Large Deployments?

foQ writes "I work in the IS department for a ~2000 networked computer environment across 10 locations. As with most people, we have experienced serious problems with spyware/adware. We have SpyBot and Ad-Aware installed on most computers, but this doesn't prevent the computers from getting these programs and only sometimes properly removes all of them. Is there a tool that we could push out to all the PCs to basically do what anti-virus programs do and block these programs from running and clean them from the computer?"

Comments

Had to be said...

[stevens]

Debian