What difference does checking the box make?
You already launch the mirror client by clicking 'Mirror' and it doesn't automatically launch the OSRS client with the box checked either.. at least not for me?

 

 

ty. 😘

Launch game with mirror is supposed launch the official client when you select an account in the osbot client. Just tested on my end and it works. 
In my experience though stealth is just as good as mirror unless you're doing tutorial island, even by hand. A bad script will get you caught regardless and a good script will get you by. Mirror hasn't been worth the extra computer resources in my experience. I use to test half mirror and half stealth back when I started and bans were pretty much even between the two.

 

Selecting an account in the osbot client is supposed to launch the official client when you choose to launch the game with a mirror. I have just tested it, and it is functional.  I've found that, unless you're playing instructional island by hand, stealth is just as effective as mirror. A weak script will always land you in trouble, whereas a strong one will let you off the hook. In my opinion, Mirror is not worth the additional computing resources. Back when I first started, I tested both half-stealth and half-half-mirror, and bans were roughly equal between the two.