ActiveX Helper is a small utility that lets you see important information about all the ActiveX components installed in your PC. You can see the data on the whole list of ActiveX components (attention, because it is usually a big list) loading it directly from the HKEY_CLASSES_ROOTCLSID route, or you can show just the set data on ActiveX components you specify.
Also, you can temporarily disable some ActiveX components via this program. When the ActiveX components are disabled, they can´t be used by any software, until you enable them again.
ActiveX Helper is a totally free application that only needs 43KB of space. A good option to know better what´s happening in your system.