Absolutely under no circumstances install or use Lavasoft Ad-Aware 2008. After some recent slowdowns on my Dell laptop with XP, I installed Ad-Aware 2008 to scan for spyware. I have used versions of this software in the past, and I can tell you that something is terribly wrong with this new product. After it was done scanning, I checked the process manager in Windows to find that Ad-Aware was sucking down over 700MB of memory. After terminating the program, another mysterious Ad-Aware system process would start—over and over again. I simply could not get rid of it. Every time that process started, it would start out consuming 128MB of RAM, and grow sharply every 2 to 3 seconds. I uninstalled this piece of crap and erased every last trace of it. It seems Ad-Aware is just as bad, or worse, than the rogue applications it is supposed to be eliminating.