ECL Webservice Metastorm BPM v9

try
            {

                ServiceSessionState eclServiceSession = new ServiceSessionState();
                ServiceClient eclWS = new ServiceClient();

                FormField[] loginData = new FormField[] { 
                new TextField() { Name = "username", Value = "SysAdmin", Culture = CultureInfo.InvariantCulture.ToString() }, 
                new TextField() { Name = "password", Value = Common.PasswordEncrypt(""), Culture = CultureInfo.InvariantCulture.ToString() }
            };

                eclServiceSession = eclWS.Login("WEB;", 0, "", loginData);

                if (eclWS.IsLoggedIn(eclServiceSession))
                {

                    //Must increase the maxStringContentLength from default in app.config to accomodate even the most meager response
                    ActionResponse response = eclWS.StartAction(eclServiceSession, "", "RefreshEditGridProc", "FirstAction", false, null);

                    (response.Action.Fields[0] as TextField).Value = "Tony";
                    (response.Action.Fields[1] as TextField).Value = "11111 BPM Ave.";
                    (response.Action.Fields[2] as TextField).Value = "Tampa";
                    (response.Action.Fields[3] as TextField).Value = "813-BPM-5555";

                    ActionResponse submitResponse = eclWS.SubmitAction(eclServiceSession, response.Action.FolderID, "FirstAction", "Form1", response.Action.ServerData, response.Action.Fields);
                    MessageBox.Show(submitResponse.ResponseType.ToString());
                }
                else
                {
                    MessageBox.Show("Cannot log you in.");
                }
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.ToString());
            }

 More demo code is in the SDK, but this demonstrates a very basic log in, starting of a blank form, filling the formfields with data and submitting the action with that data. Please note the password used must be MD5 hashed like this:

public static string PasswordEncrypt(string passwordInput)
        {
            string result = passwordInput;
            MD5 md5 = new MD5CryptoServiceProvider();
            byte[] byteArray = new byte[passwordInput.Length];

            for (int i = 0; i < passwordInput.Length; i++)
            {
                byteArray[i] = (byte)passwordInput[i];
            }

            byte[] digest = md5.ComputeHash(byteArray);
            StringBuilder hexString = new StringBuilder();

            for (int i = 0; i < digest.Length; i++)
            {
                int val = 0xFF & digest[i];
                String hex = val.ToString("x", CultureInfo.InvariantCulture);

                if (hex.Length == 1)
                {
                    hexString.Append("0" + hex);
                }
                else
                {
                    hexString.Append(hex);
                }
            }

            return hexString.ToString().ToUpper(CultureInfo.InvariantCulture);

        }