Launch 2 apps simultaniously

I have to have an app called saac.exe running whenever i want to play san andreas so that my controller works properly. I want to be able to run both saac.exe and gta_sa.exe by just using the san andreas shortcut because im lazy and the pc should do it itself.

Is there some kind of script or something i could use to do this.

Try creating a batch file.
Go into notepad and type in

start saac.exe
start sanadreas

saac.exe will have to have the full path as with the game
call the file something like san.bat and save to the desktop