Third party control on page

Hi All,
I added one ActiveX control to the web page from html source.
<OBJECT id="MyWinControl1" height="147" width="186"
classid="http:ActiveXDotNet.dll#ActiveXDotNet.myControl" ></OBJECT>
How can I access this control(MyWinControl1) in my aspx.cs ?
I am new to the web applications. Please help me.
Thank you,
Supriyatry place a "runat" property in <object> like this
<objec runat="server" id="mycontrol">
Then you will be able to access the control using object variable mycontrol
in aspx.cs