This article is about Microsoft's proprietary HTA implementation. For information regarding the HTML5 Cache Manifest, also referred to as offline HTML applications, see Cache manifest in HTML5.
An HTML Application (HTA) is a Microsoft Windows program whose source code consists of HTML, Dynamic HTML, and one or more scripting languages supported by Internet Explorer, such as VBScript or JScript. The HTML is used to generate the user interface, and the scripting language is used for the program logic. An HTA executes without the constraints of the internet browser security model; in fact, it executes as a "fully trusted" application.
The usual file extension of an HTA is .hta.
The ability to execute HTAs was introduced to Microsoft Windows in 1999, along with the release of Microsoft Internet Explorer 5.[1] On December 9, 2003, this technology was patented.[2]
^Article ID:200874 in Microsoft Support, in Microsoft Support Knowledge Base
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