It is an AutoIT v3 script that launches Steam Construct 2 Personal (only if it isn't started already) and automate your project launch. Installer associates Construct 2 files with my script so when u click on .capx file it stores the variable to that file path and send it to Steam Construct 2 Personal using scripting language with hotkey commands so now file associations work like in non-Steam version. Tested on Win7x64.