Default [Q] Bluestacks portable ??

Hello guys, i need some help, anyone knows if is already possible to have portable bluestacks in one memory stick?
I was searching and i found something but it will may be a virus, i'm not sure is is already out any version.

The main reason for this is when you cannot install nothing in one windows 7 or 8, like work or at school, so, this bluestacks should work like the normal one.

Thanks in advance friends