Sandboxie Support

So I tried to get multiple instances of 7 days to die running with aster and sandboxie. Everytime i booted 7 days it kept coming up with a corrupt memory error. I found that copying the entire steam folder to the sandboxie directory seems to make it function correctly. It still throws 1 error but on...

How would I go about changing the computer name that an application sees when running in a sandbox?