Prevent thumbnailing of certain files
Windows XP
Fix

Windows tries to create thumbnails for files (e.g. .avi) that are really huge, causing explorer to crash or slow down.

HKEY_CLASSES_ROOT\SystemFileAssociations\.avi\shellex\PropertyHandler

delete (default) = {87D62D94-71B3-4b9a-9489-5FE6850DC73E}