FSX borderless gaming using autohotkey script

Hi all 

I use Steve's directx 10 fixer, the only issue is when using multi monitors and using the alt + enter key for full screen

I found an old file in the downloads created by Maarten Boelens for borderless gaming using autohotkey. This is the description in the read me file 

Quote

This is a small autohotkey script: pressing Win+F11 maximizes any window 
and removes the window title bar, buttons and borders; pressing Win+F11 again
restores the window to its previous size and position.

This makes flying in 'full screen' possible whilst still having access to 
addons on a secundary monitor.

Please make sure you have the windows task bar set to 'auto hide'.

You need to download and install autohotkey first.
For instructions and the documentation of autohotkey see www.autohotkey.com
 

I have installed autohoykey  and clicked on the script but when in fsx and I press the win+F11 key nothing happens 

Has anyone used this and my be able to point me in the right direction on how to get it work 

Regards 

Rhys