INT 2F - MS Windows 3.1 - IDENTIFY TSRs
AX = 160Bh
???
Return: ???

Format of TSR-to-Windows communication structure:
Offset  Size    Description
00h    DWORD   pointer to next structure
04h    WORD    PSP segment
06h    WORD    API version ID (0100h)
08h    WORD    EXEC flags
bit 0: "WINEXEC"
bit 1: "LOADLIBRARY"
bit 2: "OPENDRIVER"
0Ah    WORD    "exec_cmd_show"
0Ch    DWORD   "exec_cmd"
10h  4 BYTEs   reserved (0)
14h    DWORD   TSR ID block
18h    DWORD   TSR data block


2F160B - MS Windows 3.1 - IDENTIFY TSRs