ODBC connect problems for SAPDB 7.4.3

Hello,

after i successfully installed a SAPDB (7.4.3) server and created a database instance (Demo Database "Small", created with the Database Manager GUI) i'm now in trouble with connection to the database from C# via ODBC.

SAP DB ODBC Driver was installed by the server setup (profile "all"). I created a ODBC data source (SAP DB) called "SAPDB", Database "Small" and left Server emtpy because it's the same host. So far i think this should be correct.

Now i created a C# Project in VS2005:

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Data.Odbc;
using System.Drawing;
using System.Text;
using System.Windows.Forms;

namespace SAPDB_Connector
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void btnConnect_Click(object sender, EventArgs e)
        {
            string strConn = "DSN=SAPDB;UID=DBA;PWD=admin";
            IDbConnection conn = new OdbcConnection(strConn);

            conn.Open();

            IDbCommand cmd = conn.CreateCommand();
            cmd.CommandText = "SELECT owner,tablename,type,tabletype FROM tables";

            IDataReader reader = cmd.ExecuteReader();

            try
            {
                while (reader.Read())
                {
                    int n = reader.FieldCount;
                    MessageBox.Show("Got something!!", "Yeah", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
                }
            }
            finally
            {
                reader.Close();
                conn.Close();
            }
        }
    }
}

Via the SQL Studio i can connect to the database "Small" with user "DBA" an password "admin", so i'm trying this here to. But at "conn.Open();" i get the following error:

ERROR [28000] [SAP AG][SQLOD32 DLL][SAP DB] Invalid authorization specification;-4008 POS(1) Unknown user name/password combination

Why? There is no wrong or unknown username /password combinatin because this login is working with SQL Studio.

Any ideas??

Greetings

Michael

Edited by: Michael Hilgers on Jan 30, 2008 9:23 AM