I run WoW on its own partition. I mount it as my W: drive.
Just thought I'd share that with everyone.
If you run it from Program Files under Vista, you will have issues which you will need to address, or it won't work. Fortunately you can just move it to another directory and run it from there without having to reinstall or anything. Run it from your desktop even.
Great - so now I just have to learn how to partion my drive and then reinstall the game. :(
Naah.. But are you certain your firewall (Vista has one built in too don't it?) isn't blocking stuff? APparently tuns of people with Vista can get it to work, so I doubt you'll have to repartition and reinstall.
I think problems can occur when you have wow installed in default C:\Program Files since I have mine on D:\ I can't really help :) I have a friend that needs to run WoW as admin just to take screenshots.
THat we have in common .. C: for all windows only (or those pesky applications that don't let you choose where to install the blasted things) D: for all other applications. E: docs. F: videos/movies G: music (yes, I have a lot of partitions. :P In short it's done to easily mount the right partition in linux)
Since the jump drive would mean you're copying files, just like -- copying files, yes it'll work. Assuming you take your saved variables with you (that is if you want to keep your settings).
Or alternatively, you could just get the addons you want from files.wowace.com, to get them without externals you can do files.wowace.com/addonname/ And then browse to no-ext/. You download the zipfile without the version numbers, that's the latest.