Very wierd- everytime I select a wmv file in explorer, it causes explorer to crash. I have disabled the common tasks sidebar, and I still have the problem. I can actually play any wmv file by opening it directly from a media player, but in explorer I still get crashes. Also, I am sure it is not just a defective video file becausea all wmv's do it. As for codecs, I immediately uninstalled my codec packs thinking that would solve it (I had k-lite pack and some of Nimo pack installed). Well, even that didn't solve the problem. I decided to try getting rid of as many codecs as possible, so I used Codec Sniper to delete any codec that did not appear to be windows standard or was affiliated with WMV decoding. Nope...still not working. My last hope was to unistall and reinstall windows media play, wmv codecs, and windows xp sp2, but I still get crashes! Please help. This is ridiculous and frustrating.