Type.GetType()
А потом можно Reflection'ом создать экземпляр.
Все это должно получиться.
using System;


using System.Reflection;


class TypeObjectFromNameApp {


public static void Main(string[] args) {


Type t = Type.GetType("System.Int32"); Console.WriteLine(t.Name); } }


А дальше примерно наким мокаром:
using System;


using System.Reflection;


using System.10;


class LateBindingApp {


public static void Main()


<


string[] fileNames = Directory.GetFiles


(Environment.CurrentDirectory,


CommProtocol.DLLMask); foreach(string fileName in fileNames) {


Console.WriteLine("Loading DLL '{0}'", fileName);


Assembly a = Assembly.LoadFrom(fileName);


Type[] types = a.GetTypes(); foreach(Type t in types) {


if (t.IsSubclassOf(typeof(CommProtocol)))


{


object о = Activator.Createlnstance(t);


Methodlnfo mi = t.GetMethod("DisplayName");


Console.Write("t"); mi.Invoke(o, null); }


else {


Console.WriteLine("tThis DLL does not have " + "CommProtocol-derived class defined"); } } > > }


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