setting up multibox: same computer, 2 wow folders, only ever runs from one folder?

[Bettysue]

Running the wow.exe or wow-64.exe will force the loading of the local add-in folder. Using the launcher will load the first installation of wow on a particular computer, there is a registry key that points to which instance of the executable to be loaded.
Hope that helps,
Bettysue

[MiRai]

It would help to know what software you're running, or what software you plan on running, because you're going to have a helluva time trying to multibox without any in this day and age. If you are planning to just run two copies of the game and put yourself on follow or something like that, I'll ask that you not join LFD and LFR and do that because it only makes the other "multiboxers" look like asshats -- That's not multiboxing, that's just running two clients and being lazy.

With that being said, again, in order to get a better answer you're going to need to provide more information.

Using the launcher will load the first installation of wow on a particular computer, there is a registry key that points to which instance of the executable to be loaded.

To add to this, if anyone is using the new BNet Launcher, there's an option to adjust the path right inside of the program itself.