They are created by Internet Explorer's "UserData Persistence"
feature. This is used for personalising Windows Update.
For more information, see:
You cannot save your Personalize Windows Update settings
http://support.microsoft.com/?kbid=836914
On Sun, 29 Aug 2004 02:46:06 +0100, in
<4131355f@212.67.96.135>
Neil scrawled:
>Hi,
>Win98SE, have several hundred empty dir's all with nondescript names at
>location: C:\WINDOWS\Application Data\Microsoft\Internet Explorer\UserData\
>Anyone know what's been creating these and if they can be deleted without
>causing problems for anything?
>
--
Basic computer maintenance
http://uk.geocities.com/personel44/maintenance.html