Category: <b>DOS kernel</b>
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<pre><b>INT 21 - DOS 2+ - "CLOSE" - CLOSE FILE</b>

	AH = 3Eh
	BX = file handle
Return: CF clear if successful
	    AX destroyed
	CF set on error
	    AX = error code (06h) (see <a href=../../it/80/16.html>#01680</a> at AH=59h/BX=0000h)
Notes:	if the file was written to, any pending disk writes are performed, the
	  time and date stamps are set to the current time, and the directory
	  entry is updated
	recent versions of DOS preserve AH because some versions of Multiplan
	  had a bug which depended on AH being preserved
SeeAlso: AH=10h,AH=3Ch,AH=3Dh,INT 2F/AX=1106h,INT 2F/AX=1227h
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