ActiveX controls are small programs, sometimes also called "add-ons," that are used on the Internet.
They can enhance your browsing experience by allowing animation or they can help with tasks such as
installing security updates at Microsoft Update.
Some Web sites require you to install ActiveX controls to see the site or perform certain tasks on it.
When you visit such a site, Internet Explorer asks if you want to install the ActiveX control.
Here's an example of an ActiveX message:
Mouse over or