First installation, need some help for SWTOR

[Moranae]

Sandboxie Version 3.74 - Windows 8 Pro 64-bit
I have Norton antivirus and for now not using Zone Lab, but the integrated firewall of Windows 8

Game SWTOR (i would like to be able to run my second account at the same time that the first, on my computer)

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Until SWTOR i could dual boxing *manually* without any problem, but it seems that this game block this. So i downloaded Sandboxie (free for now, as i would like to test out before buying it)

I can launch an instance of the game, BUT i can not run two instances together.

I must admit that i am a pity when it comes to set up such program. So please dont be mad at me.

I installed Sandboxie but i am lost when it comes to configure it. As i said it work fine (i have an instance of the game running, with a yellow border) but if i want to have a second instance then i have a message saying :
Would you like the SWTOR launcher to close the existing process and it shut down the Sandboxie instance.

I have an installation in c:/programs files (x86) and the second installation direclty under C:

I am trying to set it up so the first start normally and the C: start with Sandbox.

So if you can explain me what i am doing wrong, that would be great

Thank you in advance
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