Taskbar pinning/jump lists

Perhaps everyone knows this already, but I just discovered it.
Say you've pinned TCC to your taskbar in Win7. If, for example, .BTM is associated with TCC, then it's possible to pin a BTM-file to the pinned TCC (i.e., on the taskbar icon's jump list). Here, the taskbar icon starts TCCv13 and if I left click on it, the jump list shows TCC14.BTM (which just starts TCCv14). With this strategy, those who have a huge collections of old versions (Steve?) could have them all accessible from a single taskbar-pinned icon.