Ondrej Žilinec – IT Blog

I had weird problem today. Customer called that GPO I have created to set Proxy server for Internet Explorer doesn’t work anymore on Windows 7. He was right. There was Internet Explorer 10 installed on Windows 7. Proxy configuration was made by Internet Explorer Maintenance:

This was not applied on Windows 7 Internet Explore 10, even there was eventlog it should be applied. Then I set these settings using GPO Preferences. I could create settings just for IE 5,6,7 and 8:

I have decided to create settings using Internet Explorer 8. I set all settings I wanted and saved GPO:

Nothing happened. It’s because this settings are limited to Internet Explorer 8.0. So we need to dig into XML file which handles these settings. XML file InternetSettings.xml is located at \\DOMAIN\SYSVOL\DOMAIN\Policies\{76C1E5D1-9CA6-4682-AD41-FD038DDED1E9}\User\Preferences\InternetSettings. When you open this file you can see XML file with all settings. There is one attribute called MAX which defines on which version these settings are applied. I changed it to value “10.50.0.0” and now everything works:

What a stupid work around 🙂