Hi All, I'm trying to dynamically load some TabPages that are defined in seperate dlls using the code below, the problem I'm having is with the line : "PJKTabPage oTP = Activator.CreateInstance(type) as PJKTabPage;" where PJKTabPage is the name of the class, the class loads ok ( I've stepped through the code with the debugger ) but the variable oTP is always null, can't understand why ?

private void frmPluginTest_Load(object sender, EventArgs e)
{
    string[] dllFilenames = Directory.GetFiles(@"P:\PJKPlugin\TabPagePlugins","TabPage*.dll");
    foreach (string filename in dllFilenames)
    {
        try
        {
            Assembly asm = Assembly.LoadFrom(filename);
            Type[] typesInAssembly = asm.GetTypes();
            foreach (Type type in typesInAssembly)
            {
                 if (null != type.GetInterface(typeof(PJKPlugins.ICMSTabPage).FullName))
                 {
                      PJKTabPage oTP = Activator.CreateInstance(type) as PJKTabPage;
                      this.PluginTabControl.Controls.Add(oTP);
                 }
             }
         }
         catch 
         {
              // Not a valid assembly, move on
         }
    }
}