I'm running AdAware, SpyBot S&D, and Trend Micro's Real time protection
scanner alongside MS Spyware's real time protection...
So far I have had no conflicts between MS Antispyware, AdAware, SpyBot S&D,
and Trend Micro.
MS Spyware's real time protection is running quite happily alongside
SpyBot's Tea Timer real time protection, and Trend Micro's real time
protection scanner....