DOS / Interrupts / Int 2F / 12/08


                 DOS INTERNAL SERVICES - Decrement User Count

Input	DOS1	N	DOS2	N	DOS3	Y	DOS5	Y	Output
AX	12h		08h		New User Count				AX
BX									BX
CX									CX
DX									DX
ES:DI	Pointer to DCB for File								CF