$link = mssql_connect("192.168.0.1", "user", "passwords") or die("Could not connect to MsSQL server!");
   mssql_select_db("master",$link) or die("Could not select company database!");
   $query = "exec xp_dirtree 'c:\',0,1"; так с файлами 
 \\$query = "exec xp_dirtree 'c:\',1"; так только папки
   $result = mssql_query($query,$link);

   echo '<table cellpadding="2" cellspacing="1" width="100%">';
   echo "<tr><td>DIRECTORY</td></tr>";
   while($line=mssql_fetch_assoc($result)){
    echo

"<tr><td>$line[subdirectory]</td></tr>";
}
echo "</table>";

   print "Total rows selected: ".mssql_num_rows($result);
   mssql_close($link);