INT 2F - CTDEMN - INSTALLATION CHECK AX = E77Eh BX = 0000h CX = 4F4Dh ('OM') DX = 5453h ('TS') Return: AX = 7EE7h if installed BX = resident code segment CX = 6F6Dh ('om') DX = 7473h ('ts') Program: CTDEMN is a file daemon TSR(Terminate and Stay Resident) A program which remains in memory after terminating in order to provide services to other programs or the user. The name comes from the name of the DOS function call used to remain in memory after termination. by Simultan AG