spybot og ad aware personal

[olemm]

if i first run ad aware spybot never finds any problems is that correct?

[md usa spybot fan]

That is not necessarily a valid assumption. For example, from the following article:

• Spyware Warrior Rogue-Suspect Anti-Spyware Products & Web Sites
  http://www.spywarewarrior.com/rogue_anti-spyware.htm

We recommend using at least two anti-spyware scanners regularly, as one will often pick up items that the other misses. Even after you install an anti-spyware scanner, be sure to keep it updated because new spyware and adware appears on the Net almost daily.