I just watch

My computer doesn't have any anti-virus installed. No Pc-Cillin, McCafee, NOD32, etc... I am only using a Process Guard.

Using a process guard :

• I choose who is going to run and use resources
• I choose who is going to connect to the internet
• I choose who is authorized to modify my registry
• I choose who is allowed to access my machine
• I can log all process alerts, etc...
  
• I can block annoying ads and pop-ups
• I can monitor IM client (ym, msn, gaim) activity

Although, some are able to make it inside my machine. Those viruses, worms, etc... can't do anything. It's like early prevention or shall we say being in control.