The default security model for Microsoft ActiveX controls is either "always safe" or "never safe" (for scripting or initialization). A control that is "always safe" can be used by any Web page author. The SiteLock ATL template enables an ActiveX developer to restrict access so that a control is only deemed safe when used in a predetermined list of domains. This limits the ability of Web page authors to reuse the control for malicious purposes.
As it clearly states on the page you posted yourself, it is for develloppers.