I don't think that this is possible, but I thought I'd ask...  Using Win 10, MEp 6.  My most-used applications get a spot pinned to the Taskbar.  Most of those apps also have user support forums (like this one!).   So I thought it would be handy if I could Ctrl+Click the app icon, and it would launch my web browser with the forum address.  Doesn't have to be "Ctrl+Click", any alternative click would be fine.  The problem is that I don't think that you can "lock on" to a specific button with