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copied!<blockquote> <p>Is there a way to load assemblies <em>dynamically</em> to use <em>without</em> having to restart the service?</p> </blockquote> <p>Yes, there is. I suppose you have one or more types that have to be instantiated. If this is your case consider using something like this:</p> <pre><code>object instance = Activator.CreateInstance("MyAssembly.dll", "MyType"); instance.GetType().InvokeMethod(etc); </code></pre> <p>If you are running under .NET Framework 4.0 you could make use of DLR:</p> <pre><code>dynamic instance = Activator.CreateInstance("MyAssembly.dll", "MyType"); instance.MyMethod(); </code></pre> <p><strong>EDIT:</strong> Alternatively you could take a look at <a href="http://mef.codeplex.com/" rel="nofollow">MEF</a> (it is part of .NET Framework 4.0). </p> <blockquote> <p>MEF presents a simple solution for the runtime extensibility problem.</p> </blockquote> <p>Basically (<strong>I'm simplifying a lot</strong>) you can specify which folder has to be chosen for taking up the assemblies and then MEF will automatically instantiate the objects that, for example, share the same interface.</p> <p>Shared Interface:</p> <pre><code>public interface IPlugin { void ExecuteTask(); } </code></pre> <p>Plugin (external assembly):</p> <pre><code>[Export(typeof(IPlugin)] public class Plugin1 : IPlugin { public void ExecuteTask() { // Do something } } </code></pre> <p>Main Application:</p> <pre><code>[Import] private IPlugin plugin; // Somewhere else private void Initialize() { var directory = new DirectoryCatalog("myDir"); var container = new CompositionContainer(directory); container.ComposeParts(this); } </code></pre>

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