Category: <b>DOS kernel</b>
<p>
<pre><b>INT 21 - DOS 2+ - "CHDIR" - SET CURRENT DIRECTORY</b>

	AH = 3Bh
	DS:DX -&gt; ASCIZ pathname to become current directory (max 64 bytes)
Return: CF clear if successful
	    AX destroyed
	CF set on error
	    AX = error code (03h) (see <a href=../../it/80/16.html>#01680</a> at AH=59h/BX=0000h)
Notes:	if new directory name includes a drive letter, the default drive is
	  not changed, only the current directory on that drive
	changing the current directory also changes the directory in which
	  FCB file calls operate
	under the FlashTek X-32 DOS extender, the pointer is in DS:EDX
SeeAlso: AH=47h,AX=713Bh,INT 2F/AX=1105h
</pre>