Is latest Microsoft security hole fixed by disabling ActiveX?

Is today's new Microsoft security hole

http://www.microsoft.com/technet/security/advisory/972890.mspx

or

http://blogs.computerworld.com/questions_about_the_microsoft_video_activex_control_bug

fixed by disabling ActiveX? I ask this because everyone is suggesting a fix which involves searching the Registry for about 45 CLSID's and zapping them. But when I run IE (which is not often - I usually use FF) I ALWAYS run with ActiveX disabled. Won't that accomplish the same thing, and isn't it a lot easier and more foolproof? What am overlooking here?