C#

namespace Test
{
    public interface ITest
    {
        int GetTest();
    }
    
    public class EntryPoint
    {
        public static void Main()
        {
            // Compiles fine--haven't actually run it...
            ITest[] test = new ITest[3];
        }
    }
}

using System.Reflection;

public byte[] GetPublicKey(string assemblyFilename)
{
	AssemblyName assemblyName = AssemblyName.GetAssemblyName(assemblyFilename);

	return assemblyName.GetPublicKey();
	// For the token you can use
	// return assemblyName.GetPublicKeyToken();
}

"Not be to confused with 'The VD Project'. Which would be a very bad pr0n flick. " - Michael P Butler Jan. 18, 2002

using System;
using System.Data.SqlClient;

namespace DbUtils {
    public class DataTools
    {
        public static String username = null;
        public static String password = null;

        public static SqlConnection GetConnection()
        {
            String connection = "database=mydb; network address=myserver; network library=dbnmpntw; "
            if(username != null)
                connection += "user id=\"" + username + "\"; ";
            if(password != null)
                connection += "password=\"" + password + "\"; ";

            return new SqlConnection(connection);
        }
    }
}

SqlConnection conn = DbUtils.DataTools.GetConnection();