Category: <b>DOS kernel</b>
<p>
<pre><b>INT 21 - MS-DOS 7.20 (Win98) - EXTENDED-LENGTH FILENAME OPERATIONS</b>

	AX = 43FFh
	BP = 5053h ('PS')
	CL = function
	    39h "mkdir" create directory
		DS:DX -&gt; ASCIZ pathname
	    56h rename file
		DS:DX -&gt; ASCIZ filename of existing file (no wildcards)
		ES:DI -&gt; ASCIZ new filename (no wildcards)
Return: CF clear if successful
	    AX destroyed
	CF set on error
	    AX = error code (03h,05h) (see <a href=../../it/80/16.html>#01680</a> at AH=59h/BX=0000h)
Note:	these functions are equivalent to INT 21/AH=39h and INT 21/AH=56h,
	  but with a maximum path length of 128 characters instead of 67;
	  unlike INT 21/AX=71xxh, these functions are available under bare
	  DOS and not just in a Windows DOS box
SeeAlso: AH=39h,AH=56h,AX=7139h,AX=7156h
</pre>