I at one time had a macro on my desktop which I created a user icon for and assigned it a shortcut key.  I then deleted the icon.  The shortcut key still worked, great.  I moved the macro to a shared location.  I then wanted my shortcut key to point to the macro in the shared location. I attempted to create another icon pointing to that macro and tried assigning the same shortcut key.  Solidworks tells me the key is already assigned (to the previous macro).  I tried assigning that key to a Solidworks command in the keyboard shorcut menu, then removing the shortcut.  The key in question then reverts back to wanting to look for the macro on my desktop.  Can anyone help with this? 

How do I remove this old association for the shortcut key?