Much easier than fiddling with creating shortcuts in Mach3 folder and mooving it on Desktop:
* Right click on your desktop icon Mach3Mill, from popup select Copy.
* Right click on an empty space on desktop and select Paste. This will make a copy which can be renamed and modified.
* Right click on a freshly made copy and select Properties
* In Target field change 'Mach3Mill' to 'Mach3IMP' (from your screenshot I'm figuring that it is your new profile)
* Change to General tab just change the name of the shortcut.
Aply, OK
That's all