Pin 2 similar shortcuts to the task bar

"There are loads of suggestions here to do it

Two fixes that I'm not happy with: 1) make a copy of the thunderbird.exe and rename it thunderburd.exe. Have one profile point to this copy. Works, but I have to remember to manually update the copy. 2) create a task in task scheduler and run the task link. Works, but it takes half a second longer to run and a DOS box pops up for a second as the program starts."

"Would you like to recreate the Quick Launch toolbar? Then add or even find your shortcuts.

Copy this string into memory:

%userprofile%\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch

Right click on the Taskbar, choose Toolbars and then New Toolbar.
Now paste (the above string) into the Folder dialog box
Click SAVE

Now you should see the chevrons of the Quick Launch bar at the right of the Taskbar.
Finally, right-click on the Taskbar near the Start orb, select Properties, and turn off 'Lock the taskbar'.

See more about Quick Launch and toolbars here"