INT 2F - Kingswood TSR Windows - ADD OR REMOVE USER AX = 3901h BL = 0Bh CL = number of users increment: +1 if adding a new user -1 if removing a user Return: AX = error code (0000h if successful) SI,DI,DS,ES preserved Note: the TSR windows resident module may only be removed when the internal user count is zero SeeAlso: AH=39h/BL=00h,AX=3901h/BL=02h