I am quite new to windows form programming in c# but i managed to wire code for launching MTA 1.5 and 1.6
here is download:https://drive.google.com/file/d/10pLKl2_P9CJsUAgJuz1u4qC7jnmwRUOC/view?usp=sharing
when u click browse u need to select folder with both versions
example: (...\games(in this folder are saved both of MTA folders)\ )
app will make version.txt document in which will paths to games be located.
Can i get some feedback if it works for you guys or i need to abandon my little project.