Locate the Perl script in Windows Explorer. Create a shortcut to the .pl (right click, create shortcut). This creates a shortcut to the file which can be moved to the desktop, renamed etc. The default shortcut simply launches the file (script) with the associated application (perl.exe).

To get the script to execute 'in the background' you will need to edit the properties of the shortcut and change the executable to wperl.exe if you prefer not to see a command window.

The shortcut target becomes - wperl.exe "full\path\to\script.pl"