Microsoft Corporation’s DHTML Editing Component is a legacy ActiveX control that provides a WYSIWYG HTML editing surface powered by the Internet Explorer (MSHTML/Trident) engine. It enables Windows applications and IE-hosted pages to create, display, and edit HTML documents with familiar rich‑text behaviors.
Through a COM-based API, developers can execute formatting commands (bold, italic, underline, lists, alignment), insert and manipulate hyperlinks, images, and tables, query selection state, handle editing events, and load or save HTML content. The control is typically embedded from C++, Visual Basic, or .NET via COM interop, with applications supplying their own toolbars and command handling.
Originally included with older versions of Internet Explorer and later offered as a redistributable for applications, the DHTML Editing Component is now deprecated. Microsoft no longer develops or supports it, and it may be absent from modern Windows installations and is not compatible with modern browsers. It should be used only to maintain existing software that relies on the legacy MSHTML/ActiveX stack. For new development, consider standards-based HTML editing in contemporary WebView controls or third‑party editors.
Requirements: a Windows environment capable of hosting ActiveX controls and the MSHTML engine. Because ActiveX and dynamic HTML editing can introduce security risks, deployments should sanitize user-generated HTML and limit usage to trusted contexts.
DHTML Editing Component is developed by Microsoft. The most popular version of this product among our users is 6.0. The name of the program executable file is CPW3.EXE.
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