ok here's how it work's!
SandBoxie and Hidetoolz
After you install sandboxie.
1. Run 1st account normally
2. Run HideToolz and hide Rfonline.bin
3. Run SandBoxie
4. Run 2nd account with sanboxie defaultbox
if it doesn't work try using different Rfonline.bin from other server's outhere..
work's perfect in winXP haven't tried yet at win7..