Forcing IE10 to run in IE9 mode all the time

[stevenjwilliams83]

Does anyone know if there is a way to make IE10 run in IE9 mode everytime you launch it? I always have to change it with the F12 option everytime I launch it.

[gordonf]

I've had better luck using the intranet zone settings to make IE change transparently between native and compatibility modes. This does mean making sure DNS works properly, if this is an intranet site or internal web application you're having issues with. I've gotten some old web-based apps working with this, even some using Java GUIs and such.

 

Most likely, absolutely every site isn't having this problem. You could edit the Intranet Zone list to include entire domains if you had to, or use Group Policy to specify a list across all PCs in an AD domain. IE9 and IE10 will hide the compatibilty button for those sites. The intranet zone should automatically include any servers with a short hostname only (like http://internal-server/) and you can add your internal AD domain to it (*.internal-domain.local) or internal IPv4 subnet (192.168.0.*) if you don't have DNS working right.

 

So this isn't a 'permanent' F12 mode for all sites, but more of an on-demand switch depending on site.

[cian1810]

You can tweak your registry to force IE to open in IE9 mode. Look for:

HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION

 

Create a DWORD as iexplore.exe and give value 9999. (decimal value)

Restart your IE and it will open in IE9 mode

 

 

 

see also http://msdn.microsoft.com/en-us/library/ee330730(v=vs.85).aspx to understand these codes:

• 9999 (0x270F) Windows 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. Default value for Internet Explorer 9.

[mdansari.it]

Hi I am using IE11 and followed "Newbie"'s solution. It changes the document mode to our desired version. But I want to change the User agent string in the same way. Is there any way to achieve this?