title: Connect to remote computer using WMI and C#
body: <p>Hy... I am trying to connect to a remote computer using WMI and C#.
  I get an error: The RPC server is unavailable. (Exception result HRESULT: 0x800706BA).
  I don't know if that is code related so this is what I'm using:</p>
  
   <pre><code>serverN = InputText.Text;//serverN=IPAddress
  userN = userName.Text;
  passN = passName.Text;
  if (String.IsNullOrEmpty(serverN))
                  serverN = ".";
  ManagementClass manC = new ManagementClass("Win32_LogicalDisk");
  string strScope = string.Format(@"\\{0}\root\cimv2", serverN);
  ConnectionOptions conOpt = new ConnectionOptions();
  conOpt.Username = userN;
  conOpt.Password = passN;
  manC.Scope = new ManagementScope(strScope, conOpt);
  </code></pre>
  
  <p>When I try to get instances from manC I catch the exception with the RPC being unavailable. 
  Locally it works so I'm guessing that I have to make some settings on the remote machine (OS: Windows XP sp2). 
  I have checked so that it allows remote connections and I have inserted command <em>netsh firewall set service RemoteAdmin</em>  into command prompt.
  Do I need to set a domain name or a networkid? 
  Or it is something else I'm missing?</p>