Woot332, This is very compact ! Just used it on this puter.Has Win 7 Ultimate. Returned the correct key. Thank you.
Supports Windows XP,Windows Vista,Windows 7,Windows 8 WDP x86/x64 I don't use Windows XP, so I don't know about it.
executing pkeyui.exe under WinXP hangs .....running under Win7 and Win8 displays key in a split second.