Int 15/AX=3000h

AX = 3000h

Return:
AX:BX = 4F42h:4A21h ('OBJ!') if installed
CX = resident segment

Program: The Object Kernel is a program by M.W. Pieters which is currently under development

Note: Central Point's CPBACKUP v9 calls INT 15/AX=3000h at startup, but it may be checking for a different program's presence

See Also: AX=3001h - AX=3008h