INT 2F U - TKERNEL (Borland DOS extender) - INSTALLATION CHECK
	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.
SeeAlso: AH=A1h,AX=F100h,AX=FBA1h/BX=0082h,AX=FBA1h/BX=0084h,INT 15/AX=BF02h
SeeAlso: INT 21/AX=4403h"AI Architects"