OK here is the example code. There are quite a few things to be done to
make the UserControl load properly within IE. I am hoping you have
already done most of these things and that you will just copy my example
code into your embedded object.

<OBJECT id="ExampleView1"
classid="CLSID:12144051-306A-44f0-AD62-AC52523EF9F6" VIEWASTEXT
width="100" height="100">
Did not load Example object
</OBJECT>
<<<<<<<<

using namespace System;
using namespace System::Drawing;
using namespace System::Windows::Forms;
using namespace System::ComponentModel;
using namespace System::Runtime::InteropServices;

namespace Eg
{
[ComVisible(true), Guid(S"12144051-306A-44f0-AD62-AC52523EF9F6")]
public __sealed __gc class Example:
   public UserControl
   {
   public: Example(void)
      {
      System::Diagnostics::Debugger::Break();
      InitializeComponent();
      }

   public: [Browsable(false), ReadOnly(true)]
      __property System::Drawing::Size get_MinimumSize(void)
         {
         int size = (mChild ? (mChildLoaded ? 300 : 200) : 0);
         return System::Drawing::Size(size, size);
         }

   private: Void mChild_Load(Object* sender, EventArgs* e)
      { mChildLoaded = true; }
   private: Control* mChild;
   private: bool mChildLoaded;

   // Designer-controlled members
   private:
      System::ComponentModel::Container* components;
      void InitializeComponent(void)
   {
   //
   // Example
   //
   this->BackColor = System::Drawing::Color::Yellow;
   this->Name = S"Example";
   this->Load += new System::EventHandler(this, Example_Load);
   this->Layout += new System::Windows::Forms::LayoutEventHandler(this,
Example_Layout);

   }

   private: System::Void Example_Load(System::Object* sender,
System::EventArgs* e)
      {
      if (DesignMode) return;

      UserControl* child = new UserControl();
      mChild = child;
      child->Anchor = (AnchorStyles)(AnchorStyles::Top
                                 | AnchorStyles::Bottom
                                 | AnchorStyles::Left
                                 | AnchorStyles::Right);
      child->BackColor = Color::Green;
      child->Location = Point(0, 0);
      child->Size = System::Drawing::Size(ClientRectangle.Width,
ClientRectangle.Height);
      child->Load += new EventHandler(this, mChild_Load);
      Controls->Add(child);
      }
   private: System::Void Example_Layout(System::Object* sender,
System::Windows::Forms::LayoutEventArgs* e)
      {
      if (DesignMode) return;

      System::Drawing::Size size = Size;
      System::Drawing::Size minSize = MinimumSize;
      size.Width = Math::Max(size.Width, minSize.Width);
      size.Height = Math::Max(size.Height, minSize.Height);

      if (size != ClientSize)
         ClientSize = size;
      }
   };
}
<<<<<<<<<