If you're running Windows Server 2008 or Windows Vista, click the warning message on the Internet Explorer Information bar, ...

If you're running Windows Server 2008 or Windows Vista, click the warning message on
      the Internet Explorer Information bar, point to Add-on Disabled,
      and then click Run ActiveX Control. When you do this, you might see a
      security warning. Make sure that the publisher of the ActiveX control is "Microsoft Corporation"
      before you click Run.