A re-elaboration of very simple tool to be able to launch the desired versions of Il-2

The initial prerequisite is that you have installed Il-2 409 together with the Mod activator.
 
You will then be able to switch between: Il-2 4.08 (unmodded), Il-2 4.09 (unmodded) and Il-2 4.09 (modded.
You will not be able to switch to 408 modded.  

Just drop the content of the zipped file into your il Il-2 main folder typically : C:\Program Files\Ubisoft\IL-2 Sturmovik 1946 

double click the bat files corresponding to your option.  

Note for 6DOF user: you will have to activate or disactivate this mod manually

Enjoy 