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<TITLE>Int 21/AH=41h
</TITLE>
<META NAME="Description" CONTENT="
Int 21/AH=41h - DOS 2+ - UNLINK - DELETE FILE -
AH = 41h
DS:DX - ASCIZ filename (no wildcards, but see notes)
CL = attribute mask for deletion (server call only, see notes)
Return: CF clear if successful
AX destroyed (DOS 3.3) AL seems to be drive of deleted file
CF set on error
AX = error code (02h,03h,05h) (see #01680 at AH=59h/BX=0000h)
Notes: (DOS 3.1+) wildcards are allowed if invoked via AX=5D00h, in which case
the filespec must be canonical (as returned by AH=60h), and only
files matching the attribute mask in CL are deleted
">
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<h2>Int 21/AH=41h
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<h3><font color=#C00040>DOS 2+ - UNLINK - DELETE FILE</font></h3>
<PRE>
AH = 41h
DS:DX -> ASCIZ filename (no wildcards, but see notes)
CL = attribute mask for deletion (server call only, see notes)<br>
<p><b>Return:</b><br>CF clear if successful
AX destroyed (DOS 3.3) AL seems to be drive of deleted file
CF set on error
AX = error code (02h,03h,05h) <a href="javascript:if(confirm('http://www.ctyme.com/intr/rb-0000.htm \n\nThis file was not retrieved by Teleport Pro, because it was unavailable, or its retrieval was aborted, or the project was stopped too soon. \n\nDo you want to open it from the server?'))window.location='http://www.ctyme.com/intr/rb-0000.htm#Table0'" tppabs="http://www.ctyme.com/intr/rb-0000.htm#Table0"></a>(see #01680 at AH=59h/BX=0000h)
</PRE>
<p><b>Notes:</b>
(DOS 3.1+) wildcards are allowed if invoked via AX=5D00h, in which case
the filespec must be canonical (as returned by AH=60h), and only
files matching the attribute mask in CL are deleted.
DR DOS 5.0-6.0 returns error code 03h if invoked via AX=5D00h; DR DOS
3.41 crashes if called via AX=5D00h with wildcards.
DOS does not erase the file's data; it merely becomes inaccessible
because the FAT chain for the file is cleared.
Deleting a file which is currently open may lead to filesystem
corruption. Unless SHARE is loaded, DOS does not close the handles
referencing the deleted file, thus allowing writes to a nonexistant
file..
Under DR DOS and DR Multiuser DOS, this function will fail if the file
is currently open.
Under the FlashTek X-32 DOS extender, the pointer is in DS:EDX
<p><b>BUG:</b>
DR DOS 3.41 crashes if called via AX=5D00h
<p><b>See Also:</b>
<a href="rb-2578.htm" tppabs="http://www.ctyme.com/intr/rb-2578.htm">AH=13h</a> - <a href="rb-2803.htm" tppabs="http://www.ctyme.com/intr/rb-2803.htm">AX=4301h</a> - <a href="rb-2816.htm" tppabs="http://www.ctyme.com/intr/rb-2816.htm">AX=4380h</a> - <a href="rb-3017.htm" tppabs="http://www.ctyme.com/intr/rb-3017.htm">AX=5D00h</a> - <
<p><b>See Also:</b>
<a href="rb-4324.htm" tppabs="http://www.ctyme.com/intr/rb-4324.htm">INT 2F/AX=1113h</a>
<p>
<b>Category: <a href="cat-010.htm" tppabs="http://www.ctyme.com/intr/cat-010.htm">
DOS Kernel</a>
- <a href="int-21.htm" tppabs="http://www.ctyme.com/intr/int-21.htm">
Int 21h</a>
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