Can you have 2 working LoLs on your pc?

[lol.Reel]

For example one with patch 6.5 or something else, and then different LoL (lets say updated live). Can these 2 work separately or it will cause problems?

[doppelgangaz]

with vmware i guess,else its not possible.

[Bardo]

It works only with virtual machines.

[Kaori.]

you can only run lol with the current/updated patch.

however you can run lol 2 times, yea.

[Cordinator]

It can work if you use 3rd party programs or VM ... but you shouldnt do it , if your botting or something there is higher ban rate.

[ReallyNiceGuy]

You can have 2 LoL clients working on your PC through VM but I don't think it's possible for them to be two separated versions of the game.

[WookieFAN]

You must use VM's, yeah.