Hi, I've developped an ActiveX ATL with VisualC++ 2005. On most of my OS (IE 6-7-8-9, Win XP, Vista, 7) when I register it, then it is displayed in IE addons list (Options->Programs-> Manage add-ons)

But on some computers (Win7 x64 IE9, Vista 32 IE8), it is not, despite the fact that it is correctly registered, and that I can load it in a web page.

Any idea?