I thought it was just me and my pc (deaning here) but this is becoming widespread, if you are experiencing frequent explorer crashes (as opposed to IEexplorer) please read and post any info you can. This appears extremely malicious and defeats drive formats and reinstalls of the operating system if a virus.
http://www.casinoaffiliateprograms.com/bb/showthread.php?s=&postid=5479#post5479