)
Call SECURITY.VLM (VLM ID 0061h) with:
Func	Description/Registers
 01h	Security Get Version
	BX = function
	    0000h get version
		Return: AX = status (see #02860)
			BX = major version of VLM supported (0001h)
			CX = minor version of VLM supported (0000h)
 03h	Security Statistics
 04h	???
	AL = subfunction
	    01h compute session key
		DS:SI -> 24-byte input buffer
		ES:DI -> 8-byte output buffer