Find properties of taskbar item in Windows 7?

I created a script to launch a cygwin rxvt instance with certain options, and put it in my Windows Taskbar. I want to duplicate that on another computer, but I can seem to access the original shortcut that I made. When I right-click it, I only get the options to run it or unpin it.

How can I see the shortcut properties that I put on the taskbar?

When you right-click a Windows 7 taskbar item, you can then right-click the main program entry and choose Properties.

Pinned items are shortcuts located in C:\Users\<username>\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar