In contrast to other posts in this series of HTML5/WinRT comparisons, this one on web sockets is relatively short. I haven’t worked too much with either set of APIs, so only have a few details to write up.

Standard WebSockets, as they’re defined in the W3C/HTML5 API, are entirely supported for Windows Store apps. However, they support only a transaction-based UDP model like DatagramSocket and only text content. The MessageWebSocket in WinRT supports both text and binary, plus you can use the StreamWebSocket for a streaming TCP model as well. The WinRT APIs also emit more detailed error information.

For all these reasons, we generally recommend using the WinRT APIs for web sockets over the HTML5 APIs.


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