I am able to login to salesforce.com using .NET.

The problem is using any of the standard objects.

I am unable to contruct a Contact or Account object.

I am guessing I need to add the Service Reference?

Not sure how to do that, since I'm still new to .NET 

for salesforce.com

Here is my code, sorry code insert does not work!!!:

 static void Main(string[] args)
        {

            string userName = "username";
            string password = "password";
            string soql = "select LastName,FirstName,TaxID__c from Contact";

            SforceService SfdcBinding = null;
            LoginResult CurrentLoginResult = null;
            SfdcBinding = new SforceService();
            try
            {
                //login
                CurrentLoginResult = SfdcBinding.login(userName, password);
                //reset the SOAP endpoint.
                SfdcBinding.Url = CurrentLoginResult.serverUrl;
                //set the session id into the binding
                SfdcBinding.SessionHeaderValue = new SessionHeader();
                SfdcBinding.SessionHeaderValue.sessionId = CurrentLoginResult.sessionId;
               
               
                Console.WriteLine("{0}",CurrentLoginResult.sessionId);

                QueryResult queryResult = null;

                queryResult = SfdcBinding.query(soql);

                if (queryResult.size > 0)
                {
                    //put some code in here to handle the records being returned
                    int i = 0;

                    Console.WriteLine("Logged in user can see "
                          + queryResult.size + " contact records.");

                    sObject obj = new sObject();
                   
                   
                    //Lead lead = (Lead)queryResult.records[i];
                    //string firstName = lead.FirstName;
                    //string lastName = lead.LastName;
                    //string businessPhone = lead.Phone;
                }
                else
                {
                    //put some code in here to handle no records being returned
                    string message = "No records returned.";
                }

Any ideas would be greatly appreciated!