Как увидеть windows-кий объект в Web-форме на стороне сервера?

using System;
using System.Collections.Specialized;
using System.Globalization;
using System.Security.Permissions;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
 
namespace MyControls
{
    public class ActiveXDateTimePicker : WebControl, IPostBackDataHandler
    {
        public ActiveXDateTimePicker() :
                    base(HtmlTextWriterTag.Object)
        {
        }
 
        public DateTime CurrentDate
        {
            get { return ((null == ViewState['CurrentDate']) ? DateTime.Now : (DateTime)ViewState['CurrentDate']); }
            set { ViewState['CurrentDate'] = value; }
        }
 
        // IPostBackDataHandler.LoadPostData
        public bool LoadPostData(string postDataKey, NameValueCollection postCollection)
        {
            if (null != postCollection[postDataKey])
            {
                DateTime postBackDate = DateTime.Parse(postCollection[postDataKey], new CultureInfo('en-US'));
                if (postBackDate != CurrentDate)
                {
                    CurrentDate = postBackDate;
                    return true;
                }
            }
 
            return false;
        }
 
        // IPostBackDataHandler.RaisePostDataChangedEvent
        public void RaisePostDataChangedEvent()
        {
            HttpContext.Current.Trace.Write('RaisePostDataChangedEvent');
        }
 
        [PermissionSet(SecurityAction.Demand, Name='FullTrust')]
        protected override void AddAttributesToRender(HtmlTextWriter writer)
        {
            base.AddAttributesToRender(writer);
            writer.AddAttribute('classid', 'clsid:20DD1B9E-87C4-11D1-8BE3-0000F8754DA1');
            writer.AddAttribute(HtmlTextWriterAttribute.Name, this.ID);
        }
 
        [PermissionSet(SecurityAction.Demand, Name='FullTrust')]
        protected override void RenderContents(HtmlTextWriter writer)
        {
            int daysSince1899 = CurrentDate.Subtract(new DateTime(1899, 12, 30)).Days;
            writer.Write('<param name= 'CurrentDate ' value= ''+daysSince1899+' '>');
        }
    }
}