The "Web Folders" item still exists on XP
Just an interesting discovery while messing around in the HKEY_CLASSES_ROOT\CLSID registry entries, I found that the Web Folders item still exists on XP (and any of it's predecessors).You can uncover it by naming a folder "Web Folders.{BDEADF00-C265-11d0-BCED-00A0C90AB50F}". In the name, Web Folders can literally be anything.
This CLSID should be universal, but if not, it should be easy to find it by searching HKEY_CLASSES_ROOT\CLSID for "Web Folders".
This CLSID should be universal, but if not, it should be easy to find it by searching HKEY_CLASSES_ROOT\CLSID for "Web Folders".