Hello avi85 and welcome to the TeAm
You can only run one F@H GUI per computer, but you can run up to seven consoles (if you have eight cores) also.
The console can be run as a service if you don't want the button showing on the Task Bar or you can use TrayIt or FAH3Tray.exe to have it only showing in the systray.
To run the console version you must put it (it is an executable and not an installer) in a separate directory and make a shortcut to it. Now right click the shortcut and select Properties and then in the "Target" textbox, at the end of what is in there add a space and a dash (-) and then "local" without the quotes. You can also add a couple of more flags so it would look something like this:
C:\fah2\FAH5.04b.exe -local -verbosity 9 -forceasm
The first time you run the program it will enter Setup where you answer some questions like name (enter exactly the same as you did in the GUI) and team (198) and more. It is very important to answer Yes to advanced options because you have to change the MachineID from the default "1" (which is what the GUI is) to a "2". If you don't change the MachineID you will probably have both instances crunching the exact same WU (work unit).
If you want to set the console up as a service check out MDE's Set up guide, the link is at the bottom of the daily F@H stats thread. Edit: amdxborg beat me to it!
If you have any other questions please don't hesitate to ask
