The Microsoft® Certificate Enrollment Control interfaces include direct COM and IDispatch support. C++ applications should always use the direct COM interfaces.
To access Certificate Enrollment Control from Visual Basic Script include the following OBJECT element in your HTML document:
<OBJECT
classid="clsid:43F8F289-7A20-11D0-8F06-00C04FC295E1"
CODEBASE="xenroll.dll"
id=Enroll
>
</OBJECT>