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I am trying to enable SPDY on web browser control (Internet Explorer 11/WIN 8.1). In Internet Explorer advanced settings and in the registry the EnableSPDY3_0 is set to 1. But in my web browser control the SPDY is not working. Are there other settings that I need to configure?

user3279685
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1 Answers1

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How specifically are you attempting to detect SPDY?

I took a quick look with Fiddler and confirmed that SPDY is not used by the Web Browser control outside of IE itself. As this is a new and somewhat experimental feature, I'm not that surprised that the WebOC isn't using it yet.

If you rename your executable to iexplore.exe then you will find that SPDY is used. (WARNING: This isn't recommended for many functionality and security reasons.) That behavior indicates that they're using a FEATURE_CONTROL KEY to control whether SPDY is permitted; feature control keys work on a per-process basis.

I don't see a documented entry for this feature in the official FEATURE_CONTROL list. Internet Explorer's documentation writer and networking PM have confirmed that this is deliberately not documented and suggest that a bug be filed at connect.microsoft.com if you'd like to see a change in policy on this.

EricLaw
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  • well, according to wikipedia (with citations), its not IE only feature as it is first developed by Google and going towards standardization. [wiki](http://en.wikipedia.org/wiki/SPDY) – am05mhz Feb 16 '14 at 04:23
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    No one said that it's an "IE only feature"-- IE was the *last* major browser to add support. If you read my response, you'll note that I said that "SPDY is not used by the Web Browser control outside of IE itself." **Web Browser control** is how Microsoft refers to the hosting of IE's components inside other applications. – EricLaw Feb 17 '14 at 22:55