Spyware,Adware,Diallers,etc

Everymorning I run Spybot,Ad-Aware and eTrust Pest Patrol.
I left Limewire Downloading overnight and when I ran the Cleaning Programes .
Spybot had 18 entries to Delete.
Ad-Aware had 14 Entries to Delete.
eTrust PestPatrol had 10 Enries to Delete
The Computer was clean before I ran Limewire and all the Spyware,Adware ,Diallers etc was on the Computer next morning.
I did not visit any other sites ,Just Limewire.
Has any one else had this Trouble

Apparently, Pest Patrol isn't very reliable. Some info here, or you can use the search (top right between faq & home) & look for "pest" or "pest patrol".
http://www.gnutellaforums.com/showth...ht=pest+patrol

Be careful with downloading. There are a lot of fake files around now, some containing malware. Here's some info on virus probs on the network:
http://www.gnutellaforums.com/showth...threadid=41432

I usually use Spybot and Ad-aware first because eTrust Pest Patrol sits on the screen and cannot be shrunk out of the way.
I know you can bring other Items over it.
But once Spybot and Ad-aware are finished and I run Pest Patrol it always pick up some type of malware to delete.
Any Idea why.When all I have run is Limewire