You can definitely get multiple instances of LotRO to run on one PC. I have only ever tried 2 at a time though. If you have made a copy of your Lord of the Rings online folder inside of the Turbine folder and renamed it(example: LotRO 2ndClient), made a copy of the LOTROinvoker.exe file inside of your renamed LOTRO folder, rename it (example: Client 2) and then dragged that to desktop you should be able to run 2 instances now, make sure you have both of the login windows opened and ready to login. If you do one and enter the world before you have the second one started and ready for login, you will usually get the message "LotRO is already running, would you like to bring it to the front?" message. Also I am running a Core2Duo e6750 over clocked to 3.66Ghz with 8G of ram with the paging file size minimized and then disabled. I also set the CPU affinity of each LotRO client so each one is on a separate core independent of each other. This has reduced the overall % of CPU usage during play compared to having both clients utilizing both cores as the system sees fit. The one issue I do have is that I am using Keyclone to broadcast my keys to my third character on a seperate PC and would really like to get my second Instanced character more involved. Is there a utility I can use to lock that window in the forefront so that it accepts the broadcast from Keyclone??