INT 2F CU - Novell DOS 7+ FDOS EXTENSIONS - ALLOCATE CLUSTER                    
	AX = 1005h
	BX = block from which to start search (e.g. current end of file)
	    0000h = start of disk
Return: AX or BX??? = allocated cluster (already marked as End of Chain)
	    or 0000h if none available
Notes:	This private function is called internally by the OS kernel to
	  ask the FDOS to allocate disk space.  By using the
	  INT 2F/AX=1001h FDOS hook, the call can be intercepted by external
	  system components such as the DELWATCH TSR(Terminate and Stay Resident) A program which remains in memory after terminating in order to provide services to other programs or the user.  The name comes from the name of the DOS function call used to remain in memory after termination..
	This function must under no circumstances be called by applications!
SeeAlso: INT 2F/AX=1001h,AX=1004h,AX=1007h,AX=10FEh