INT 21 U - DOS 3.1+ internal - SHARE.EXE - GET OPEN FILE LIST ENTRY
        AX = 5D05h
        DS:DX -> DOS parameter list (see AX=5D00h)
        DPL's BX = index of sharing record (see AH=52h)
        DPL's CX = index of SFT in sharing record's SFT list
Return: CF clear if successful
            ES:DI -> ASCIZ filename
            BX = network machine number of SFT's owner
            CX = number of locks held by SFT's owner
        CF set if either index out of range
            AX = 0012h (no more files)
Notes:  error unless SHARE is loaded (calls [SysFileTable-18h]) (see AH=52h)
        names are always canonical fully-qualified, such as returned by AH=60h
SeeAlso: AH=60h