It turns out that if I delete the DACL before populating it with the Add method, it works.

So the code now looks like this:

use Win32::Perms;
use diagnostics;
use strict;

Win32::Perms::LookupDC( 0 );

my $path = 'c:\temp';
my $login = '\\hostname\testuser';
my $Dir  = new Win32::Perms($path) or die "new: $^E";
$Dir->Remove( -1 ); # added this line
$Dir->Add($login, CHANGE, ACCESS_ALLOWED_ACE_TYPE, OBJECT_INHERIT_ACE 
+| CONTAINER_INHERIT_ACE ) or die "allow: $^E";
$Dir->Set() or die "set: $^E";
$Dir->Close();

[download]
Now I need to find out a way to extract the existing ACL, add the entry I want, and re-apply the whole thing...

Schlika.

In reply to Re: can't understand error message? by Schlika
in thread Win32::Perms - Can't use Add or Allow methods by Schlika

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.