Category: disk I/O enhancements

INT 1A - Microsoft Real-Time Compression Interface (MRCI) - ROM-BASED SERVER

	AX = B001h
	CX = 4D52h ("MR")
	DX = 4349h ("CI")
Return: CX = 4943h ("IC") if installed
	DX = 524Dh ("RM") if installed
	    ES:DI -> MRCINFO structure (see #00725)
Note:	this call is functionally identical to INT 2F/AX=4A12h, which should
	  be called first, as this call is used for the first, ROM-based
	  MRCI server, while the other call is used for RAM-based servers
	  which may be partially or entirely replacing a prior server
SeeAlso: INT 2F/AX=4A12h