INT 2F - JAM.SYS v1.10+ - "UnLock" - UNLOCK COMPRESSED DRIVE
	AX = 5205h
	DL = drive number (0-default, 1-A:, etc.) to unlock
Return: AH = status (00h,01h,04h,06h,08h,09h,0Dh) (see #02835)
	AL = host drive error code (see #02598 at INT 2F/AX=0802h)
SeeAlso: AX=5204h, AX=5206h, AX=5207h
Note:	Lock and UnLock functions were added to the JAM API(Application Program[ming] Interface) The defined set of calls which a program may make to interact with or request services of the operating system or environment under which it is running.  Because the inputs and outputs of the calls are well-defined, a program using the API can continue using the identical calls even if the internal organization of the program providing the API changes. to prevent
	  asynchronous physical-level access (see AX=5206h,AX=5207h) to
	  compressed data on JAM drives. In other words, two or more programs
	  which use JAM API(Application Program[ming] Interface) The defined set of calls which a program may make to interact with or request services of the operating system or environment under which it is running.  Because the inputs and outputs of the calls are well-defined, a program using the API can continue using the identical calls even if the internal organization of the program providing the API changes. (say, JMAX optimizer and JCHKDSK - disk checker)
	  cannot be run on the same JAM drive simultaneously.