Int 2F Fn 1683  - MS Windows 3+ - Get Current Virtual Machine Id           [W]

   AX = 1683h

Return: BX = current virtual machine (VM) ID

Notes: Windows itself currently runs in VM 1, but this can't be relied upon
   VM IDs are reused when VMs are destroyed
   an ID of 0 will never be returned

See Also: AX=1684h,AX=1685h,AX=168Bh