Release console when starting the simulator

Change detection logic of .net fx. Now we consult the registry before executing the affected command

Fixes http://teampulse.telerik.com/view#item/281473
Just wondering - is it possible to have only v4.0 entry instead of v4  - on my machine I have: v3.0, v3.5 (notice there's no v3), v4, v4.0 (version of v4 is 4.5....)