was the final version of Microsoft's "What You See Is Get" (WYSIWYG) HTML editor and website administration tool. While it was a cornerstone of early web development, it has since been discontinued and replaced by newer technologies. Core Identity and Role

: It simplified the creation of graphical buttons with hover and pressed states, automatically generating the necessary image files.

: Users could switch between a visual editor, a raw code editor, or a "Split" view to see both simultaneously. Legacy and Successors

: Unlike earlier versions that relied heavily on HTML attributes, the 2003 version moved toward Cascading Style Sheets (CSS) for cleaner code and better design control.