itech ActiveX Registerer is a tiny free tool (just 206KB) that lets the user scan activeX DLL, OCX and Directshow AX components in their PC. This then gives them the possibility to register or unregister the DLL or OCX libraries in Vista.
This way you can check if the resources they are using are needed for some mission, or on the contrary you may want to delete them as they are just taking up space. itech ActiveX Registerer works with Windows 2000/XP and Vista operating systems, but for 2000 you need to install VB6 Runtimes.