ActiveX controls are among the many types of components that use COM technologies to provide interoperability with other types of COM components and services. ActiveX controls are the third version of OLE controls (OCX), providing a number of enhancements specifically designed to facilitate distribution of components over high-latency networks and to provide integration of controls into Web browsers.
ActiveX controls are machine code packages which ?plug-in? to the browser to give the browser (and any web pages) extra functionality. In order for the extra facilities to be available, the code must be downloaded and installed on each machine. For example, ActiveX controls can allow web pages to access the hard disk, display, etc..
Security conscious companies will usually filter out all ActiveX controls to prevent accidental security breaches.
Keywords:Active X security