Type T = typeof(KQV1.DataAccess.ConnectionBuilder);
            string s = T.Assembly.FullName.ToString();

            Assembly SampleAssembly = Assembly.Load(s);

            MessageBox.Show(s);

private Form LoadFromAsmbl(string strAsmblPath, string strClassName)
        {
            // 验证你的程序集是不是存在，你的总不能去引用一个不存在的东西吧？
            if(!File.Exists(strAsmblPath))
            {
                MessageBox.Show("Assembly Not Exists!", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                return null;
            }

            // 这里就加载程序集了，有很多种方式。去MSDN上看看吧
            Assembly asmbl = null;
            try
            {
                asmbl = Assembly.LoadFrom(strAsmblPath);
                if (asmbl == null)
                {
                    throw new Exception("Fail to load assembly " + strAsmblPath);
                }
            }
            catch(Exception e)
            {
                MessageBox.Show(e.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                return null;
            }

            // 实例化你要的对象，如果成功的话就没问题了*_*
            Form frmController = null;
            try
            {
                frmController = (Form)asmbl.CreateInstance(strClassName);
                if (frmController == null)
                {
                    throw new Exception("Fail to create instance of " + strClassName);
                }
            }
            catch(Exception e)
            {
                MessageBox.Show(e.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                return null;
            }

            // 到这里你就可以放心了*_*
            return frmController;
        }