Eric, with my rewrite, you can call RtlEqualPrefixSid instead of using <span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:13px;background-color:rgb(255,255,255)">LsapIsPrefixSid. The code should be the same</span><div>

<font color="#222222" face="arial, sans-serif"><br clear="all"></font>Best regards,<br>Alex Ionescu<br>
<br><br><div class="gmail_quote">On Sun, Oct 7, 2012 at 7:33 PM,  <span dir="ltr">&lt;<a href="mailto:ekohl@svn.reactos.org" target="_blank">ekohl@svn.reactos.org</a>&gt;</span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">

LsapIsPrefixSid</blockquote></div><br></div>