How to put the WebBrowser control into IE9 into standards?

Solution 1:

Have you tried setting in your html the

<meta http-equiv="X-UA-Compatible" content="IE=9" />

or

<meta http-equiv="X-UA-Compatible" content="IE=edge" />

which means latest version

Solution 2:

The IE9 "version" of the WebBrowser control, like the IE8 version, is actually several browsers in one. Unlike the IE8 version, you do have a little more control over the rendering mode inside the page by changing the doctype. Of course, to change the browser mode you have to set your registry like the earlier answer. Here is the location of FEATURE_BROWSER_EMULATION:

HKEY_LOCAL_MACHINE (or HKEY_CURRENT_USER)
     SOFTWARE
          Microsoft
               Internet Explorer
                    Main
                         FeatureControl
                              FEATURE_BROWSER_EMULATION
                                   contoso.exe = (DWORD) 000090000

Here is the complete set of codes:

• 9999 (0x270F) - Internet Explorer 9. Webpages are displayed in IE9 Standards mode, regardless of the !DOCTYPE directive.
• 9000 (0x2328) - Internet Explorer 9. Webpages containing standards-based !DOCTYPE directives are displayed in IE9 mode.
• 8888 (0x22B8) -Webpages are displayed in IE8 Standards mode, regardless of the !DOCTYPE directive.
• 8000 (0x1F40) - Webpages containing standards-based !DOCTYPE directives are displayed in IE8 mode.
• 7000 (0x1B58) - Webpages containing standards-based !DOCTYPE directives are displayed in IE7 Standards mode.

The full docs:

http://msdn.microsoft.com/en-us/library/ee330730%28VS.85%29.aspx#browser_emulation

Solution 3:

FEATURE_BROWSER_EMULATION does not works with CoInternetSetFeatureEnabled. The documentation of INTERNETFEATURELIST is not updated since IE7.

Since the feature setting is under HKEY_CURRENT_USER\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl you may be able to override the value in your process via a registry API hook.