title: xp_delete_file not removing old backups
body: <p>This command is not deleting backups:</p>
  
  <pre><code>EXEC xp_delete_file 0,N'F:\path\cms',N'*.bak',N'2014-01-30T21:08:04'
  </code></pre>
  
  <p>Also tried</p>
  
  <pre><code>EXEC xp_delete_file 0,N'F:\path\cms',N'bak',N'2014-01-30T21:08:04'
  </code></pre>
  
  <p>and</p>
  
  <pre><code>EXEC xp_delete_file 0,N'F:\path\cms',N'.bak',N'2014-01-30T21:08:04'
  </code></pre>
  
  <p>SQL Server Agent has permissions on the folder.</p>