Hi, I was having a frustrating issue with several dreams causing Explorer crashes.
I had previously installed the FFDSHOW codec pack, and then uninstalled it to see if that would fix the issue - it did not. Also, uninstalling Deskscapes and reinstalling did not fix it either.
THE FIX
The fix was to reinstall FFDSHOW, and on the configuration screen where you choose what codecs it decodes, scroll down to MPEG2, and select the first box (you want FFDSHOW to decode it, not Windows).
Continue install, and all dreams should now work!