One of the annoying features of Windows XP's WE is its assumption it has a holy duty to report the Duration and Dimension details of every single vidoe file whenever it (or rather, you) traverses into a directory chock full of them. This slows down the system considerably to extract information one wouldn't need 99.99% of the time.
And by "holy duty" I mean Windows doesn't give a usable interface option for disabling this "enchanced" function.
Well, rejoice. All that is needed is to rename the following obscure Registry key
to something like
Sweet (and swift) liberation is just round the corner.