ISite.cs

using System.Runtime.InteropServices;

namespace System.ComponentModel
{
    [ComVisible(true)]
    public interface ISite : IServiceProvider
    {
        IComponent Component
        {
            get;
        }

        IContainer Container
        {
            get;
        }

        bool DesignMode
        {
            get;
        }

        string Name
        {
            get;
            set;
        }
    }
}