What using statement must be added to use the Backup class in c#
<p>I want to use the <code>Backup</code> class to make a backup of my database. </p>

<p><code>Backup backup =new Backup();</code></p>

<p>However, I do not know what namespace this class is found in.</p>

<hr>

<p>I added Microsoft.SqlServer.SmoExtended.dll And Microsoft.SqlServer.Smo.dll</p>

<p>Now its Work !</p>

<p>Thanks all</p>
