[_novalis]

Basically I'd just like to start a script from a menu point or favorite entry. I think there was an addon for that, Advanced Launcher, which doesn't exist anymore. Any other possibility to do this?

[jjd-uk]

Use the built in function System.Exec(exec) where exec is the system path to the batch file e.g. System.Exec(C:\scripts\somescript.bat) if you do a search for System.Exec you should hopefully find some examples.