Compatibility Issues
[The feature associated with this page, Windows Media Player SDK, is a legacy feature. It has been superseded by MediaPlayer. MediaPlayer has been optimized for Windows 10 and Windows 11. Microsoft strongly recommends that new code use MediaPlayer instead of Windows Media Player SDK, when possible. Microsoft suggests that existing code that uses the legacy APIs be rewritten to use the new APIs if possible.]
Web pages opened by the HTMLView feature are displayed using an embedded instance of Microsoft Internet Explorer. No Netscape compatibility is required for HTMLView content.
Currently, only Windows Media Player 9 Series or later supports the HTMLView feature. Earlier versions of the Player and versions created for other platforms ignore the HTMLView parameter when parsing an .asx file. When this happens, the digital media content plays as expected, but the Web-based content is not displayed in the Now Playing feature.