HTML Components

Internet Explorer script component technology

Not to be confused with Web Components.

HTML Components (HTCs) are a legacy technology^[1] used to implement components in script as Dynamic HTML (DHTML) "behaviors"^[2] in the Microsoft Internet Explorer web browser. Such files typically use an .htc extension and the "text/x-component" MIME type.^[3]

An HTC is typically an HTML file (with JScript / VBScript) and a set of elements that define the component. This helps to organize behavior encapsulated in script modules that can be attached to parts of a Webpage DOM.

Example

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<body>
<ul>
<listyle="behavior:url(hilite.htc)">Example</li>
</ul>
</body>

In this example, the li element is given the behavior defined by "hilite.htc" (a file that contains JScript code defining highlight/lowlight actions on mouse over). The same hilite.htc can then be given to any element in the HTML page - thus encapsulating the behavior defined by this file.