INT 2F - MODRES v2.00+ - STOP PLAYING                                           
	AX = 8226h
Return: AX = status
	    5722h succesful
	    other MODRES not installed
Desc:	stops playing the MOD file before performing critical operations such
	  as disk accesses
SeeAlso: AX=8220h,AX=8221h,AX=8223h,AX=8225h,AX=8227h