Int 21 Fn 5757  U - Ibm Genie - Resident Manager - Installation Check      [U]

   AX = 5757h
   BX = 5757h

Return: AX = 0000h if installed
       BX = ???
       DX = ???
       DS:SI -> list of 27 DWORD entry point addresses
Program: IBM Genie is a set of utility TSRs by Helix Software

Note:  other functions possible if BX <> 5757h, but details not yet available