Connect to poweshell using ASP.NET C#

Runspace runspace = null;
string shellUri = "http://schemas.microsoft.com/powershell/Microsoft.PowerShell";
PSCredential remoteCredential = new PSCredential(@"userid", StringToSecureString("password"));

WSManConnectionInfo connectionInfo = new WSManConnectionInfo(false, "ip address",5985, "/wsman", shellUri, remoteCredential, 1 * 60 * 1000);
connectionInfo.OperationTimeout = 4 * 60 * 1000;
runspace = RunspaceFactory.CreateRunspace(connectionInfo);
connectionInfo.AuthenticationMechanism = AuthenticationMechanism.Basic;
runspace.Open();
    using (PowerShell ps = PowerShell.Create())
    {
       ps.Runspace = runspace;
       ps.Commands.AddCommand("Get-Mailbox");
       ps.Commands.AddParameter("Identity", "user@domain.com");
 
      var result = ps.Invoke();
      foreach (PSObject res in result)
      {
        Console.WriteLine("{0,-25}1}",res.Members["DisplayName"].Value,res.Members["PrimarySMTPAddress"].Value);
       }
      }
            runspace.Close();
            runspace.Dispose();

string shellUri = "http://schemas.microsoft.com/powershellMicrosoft.PowerShell";
PSCredential remoteCredential = new PSCredential(@"userid", StringToSecureString("password"));

WSManConnectionInfo connectionInfo = new WSManConnectionInfo(false, "ip address", 5985, "/wsman", shellUri, remoteCredential, 1 * 60 * 1000);
connectionInfo.OperationTimeout = 4 * 60 * 1000;
Runspace runspace = RunspaceFactory.CreateRunspace(connectionInfo);
connectionInfo.AuthenticationMechanism = AuthenticationMechanism.Basic;
runspace.Open();

            //Get Mail Box
            Pipeline pipelineGetMailBox = runspace.CreatePipeline();

            Command getMailBox = new Command("Get-Mailbox");
            getMailBox.Parameters.Add("OrganizationalUnit", "OU Name");
            getMailBox.Parameters.Add("Identity", "user@domain.com");

            pipelineGetMailBox.Commands.Add(getMailBox);

            Collection<PSObject> mailboxGetResult = pipelineGetMailBox.Invoke();

            pipelineGetMailBox.Dispose();

            runspace.Close();
            runspace.Dispose();