I have developed an ActiveX control and I am able to register is successfully. Also note that this is a signed component.
On IE 7, I can see this control listed when I go to Tools -> Manage Add-ons -> Enable or Disable Add-ons.
But on IE 8 (and above) I do not see this control getting listed if I go to Tools -> Manage Add-ons -> Toolbars and extensions
Due to this, if the setting "Allow previously unused ActiveX controls to run without prompt" is set to "Disabled", On IE 8, the control does not run (but works just fine on IE 7 with the same settings)
Please let me know If there is different way to register an ActiveX dll for IE 8 and IE7