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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
<HTML>
<HEAD>
<META http-equiv="Content-Type" content="text/html; charset=Windows-1252">
<TITLE>-sni (Store NT security information) switch</TITLE>
<LINK href="style.css" rel="stylesheet" type="text/css">
</HEAD>
<BODY>
<H1>-sni (Store NT security information) switch</H1>
<H4>Syntax</H4>
<PRE class="syntax">
-sni
</PRE>
<P> Use this switch to store and restore NT (NTFS) security information for files and directories.
Note that only NTFS file system supports that feature.</P>
<P> Current version of 7-Zip can store NT security information only to WIM archives.</P>
<H4>Examples</H4>
<PRE class="example">
7z a a.wim -sni *.txt
</PRE>
<P>stores <SPAN class="filename">txt</SPAN> files with NT security information.</P>
<PRE class="example">
7z x a.wim -sni
</PRE>
<P>unpacks <SPAN class="filename">a.wim</SPAN> and restores NT security information.</P>
<H4>Commands that can be used with this switch</H4>
<P>
<A href="../commands/add.htm">a (Add)</A>,
<A href="../commands/extract.htm">e (Extract)</A>,
<A href="../commands/update.htm">u (Update)</A>,
<A href="../commands/extract_full.htm">x (Extract with full paths)</A>
</P>
<H4>See also</H4>
<P>
<B>Switches:</B>
<A href="sns.htm">-sns</A>
</P>
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