0.8.6.0 is out now.
like older versions, its one EXE for XP/2k3/Vista.
however, depending on what OS it detects, it will *hide* the items that don't work on that OS.
load it up under Vista, and the Classic Explorer search and Win2k3 Shutdown dialog items disappear off the menu.
load it up under XP or 2k3, and the Vista UAC and 3rd set of Files/Folders options disappears off the menu.