INT 17 - Alloy MW386 - CHANGE TEMPORARY SPOOL(Simultaneous Peripheral Operation OnLine)  The process of performing output to a slow peripheral such as a printer while other tasks continue running on the CPU.  This term dates back to mainframe days before the invention of timesharing. DRIVE
	AH = A9h
	AL = new spool drive (2=C:,3=D:,etc)
Return: AL = status (see #00642)
Note:	does not remove previous spooling directory since jobs may be pending
SeeAlso: AH=A8h