Elistrea's Method is a CONFIRMED work!
I just copied my main lotro directory and it does in fact allow me to
run two instances of lotro on one computer. Here are some basic step by
step instructions:
1. Go into my computer and find where you installed your Turbine game folder
2. Open said folder and right click on the lord of the rings online folder (select copy and paste within your turbine folder)
3. Depending on the machine, you may have to wait a bit for it to copy.
4. When it is finished, open the new folder and find the Turbine
Launcher icon (should be about 2.11 mb) and copy that to the desk top.
5. Click your original copy of lotro to start the program, then click
the new turbine launcher (your computer may ask you to unblock or block
turbine so please allow it to access the internet.
6. You should be able to play two instances of lotro on one box now. I
am now dual boxing my warden and using a lore master for help. Cheers
MAC