I have a shortcut to an MMC console. I've used this shortcut in windows xp, windows 7, and windows 8. I can pin that shortcut to the start screen in windows 8.1, but I can't right-click the icon pinned on start and add to taskbar. I can't drag the shortcut from the desktop to the taskbar. I Can put a shortcut into
C:\Users\utterly.baffled\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar
which also contains all the other shortcuts i have pinned to my taskbar, but this MMC shortcut does not actually show up on the taskbar.
this behaves the same whether the MMC is saved on my C drive or out on a share.