No! BoxedApp Packer doesn't create any temporary files, all virtual files are really virtual. They are totally in memory.
No! BoxedApp Packer doesn't use drivers or another low level methods. BoxedApp Packer works in user-mode.
Yes! BoxedApp Packer is fully compatible with x64 environment. There is a x64 build of the DLL.
BoxedApp Packer is fully compatible with all Windows versions beginning with Windows 2000.