How to Invoke the class from Webservice to C#

        public EmployeeExport[] ExportEmployees(string LoginName, string Password, [System.Xml.Serialization.XmlElementAttribute(IsNullable=true)] System.Nullable<System.DateTime> LastExport, out string ErrorMessage) {
            object[] results = this.Invoke("ExportEmployees", new object[] {
                        LoginName,
                        Password,
                        LastExport});
            ErrorMessage = ((string)(results[1]));
            return ((DLAEmployeeExport[])(results[0]));
        }

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The namespace for my webservice is "AWService {"

The above code in my webservice,i added this webservice in my c# console application,but how can i call this class and pass the string.

my console applicaton code.

namespace AWebservice
{

   public class Program
    {
        public static void Main(string[] args)
        {
            AWService.AEmployeeExport export = new AWService.DLAEmployeeExport()
           

        }
    }
}

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how can i pass the string and am not able to invoke those method.Thanks in Advance !