ActiveX is a tool or set of rules that guides a program to function. It can be described as containing specifications that show how Windows applications should talk to each other. If someone builds an ActiveX control, they can put it in another application that understands how to host ActiveX controls. Many sites require you to download and use ActiveX controls that are located around and clutter the registry. This slows down the system and it is important to clean the registry from time to time. To do this, you will need a registry cleaner. There are many free registry cleaners on the Internet. Download a free registry cleaner for your system and clean the registry.
How we use ActiveX controls
When the browser detects ActiveX components embedded in the web page, the browser refers to “CLASSID” on the web page to determine if the necessary ActiveX controls are present in the computer system. If the controls are not present, the browser will automatically download the controls. Once you have completed these controls, they remain in the registry. The registry cleaner window will clear the registry for you and speed up your system.
ActiveX controls and computer security
Because ActiveX controls are written in VBScript, they are programs, and unlike Java applets, they can be designed with malicious intent. Unsuspecting users will download ActiveX controls from unknown sites, completely trusting the content, and end up doing a lot of damage to their system or losing data through online theft. That’s why Microsoft came up with the signature system for ActiveX controls. This system allows the control designer to digitally sign their controls using an online signature authority. Later, when you visit a webpage that uses the control, your browser can verify that the person who signed it wrote the control. This does not guarantee that the control is secure, but at least you have some hope that you know who really wrote the control.
As you continue to visit Web pages, pages may continue to download these controls and clutter the registry, which must be cleaned with detergents to keep your system running efficiently. This is most important when someone copies control from one website to another. The signature lets you know who the original author is. Typically, if the control is digitally signed with this online security system, Windows removes the control automatically, and if the control does not go through the security signature system, the browser displays a warning message and allows the user to remove the control from it discretion.
This is basically the main difference between signed and unsigned ActiveX controls.