Controls that run on a web page either work when a page is being created, or when it's being viewed in a Web browser. These are called design-time controls (DTCs) and ActiveX controls, respectively.
Note Not all controls can be used on your web site. Originally used as tools by software developers, controls prevented the need to rewrite commonly used pieces of code. Controls designed explicitly for software creation will not work in Microsoft FrontPage or on the World Wide Web.
ActiveX controls
ActiveX controls run when a web page containing the control is loaded in Microsoft Internet Explorer. Some ActiveX controls are installed as part of Microsoft Windows 95 or later, and many are installed along with certain types of software. ActiveX controls can execute a wide range of behaviors, which may include displaying calendars or stock tickers.
Note For details on features and technologies that are supported by specific browsers, see the Browser Compatibility Help topics.
Design-time controls
DTCs are a special type of ActiveX control that you can use in FrontPage. For example, software developers sometimes write DTCs to use in creating content on a web page during design-time. When that web page is browsed, a site visitor sees only the output of the control (which would be text).