Int 2F Fn E77E  - Ctdemn - Installation Check                              [f]

   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 by Simultan AG