I manage a small computer shop in southern New Hampsire and recently an HP computer came in for repair with a booting problem. After I resolved it, as a curtosy, I upgraded Internet Explorer to version 6. After the reboot, I right-clicked on the desktop and I got an explorer crash. I decided to right click again and this time it didn't crash so I had a chance to notice that the video driver had added some extra features to that menu. Without any solid ideas, I ran a quick few Google searches and came up with several forums explaining the exact same problem. Most of them referenced removing the startup items "igfxtray.exe" and "hkcmd.exe" either using MSConfig or the registry entries in the key
HKLM\Software\Microsoft\Windows\CurrentVersion\Run
Well, just like everyone else, these programs were causing Windows to crash, but I had already removed them. I continued to poke around on the web, visiting different forums, downloading different drivers and trying to locate some patches all to no avail. I then commited myself to eliminating the additions to the right-click menu that the video driver had added. I would let nothing stop me. Eventually, I found the registry key that was controlling it.
HKCR\Directory\Background\shellex\ContextMenuHandlers\igfxcui
Deleting this entry completly solved the problem for me. I hope it does the same for you.
gl hf strength and honor,
outbak - MSNE