Int 2F/AX=FBA1h/BX=0081h

AX = FBA1h
BX = 0081h
ES:DI -> 16-byte buffer

Return:
If installed, first four bytes of ES:DI buffer are "IABH"

Program: TKERNEL is a licensed version of AI Architects/Ergo's OS/x86.

Note: TKERNEL was present only in Borland C++ 2.0; with version 3.0, the DOS extender was moved into DPMILOAD.

See Also: AH=A1h - AX=F100h - AX=FBA1h/BX=0082h - AX=FBA1

See Also: INT 21/AX=4403h"AI Architects"