Somehow I managed to fix Mixed error pages in IIS 7.5 on my Windows 7 x64 dev box, which is also IIS 7.5. Or I should rather say "it works" instead of "I fixed it", since I don't really know what was wrong in the first place.
I copied my applicationHost.config and web.config to the production server, but it doesn't work there.
What other config file am I missing? How can I overwrite the entire IIS configuration on the production server with my own? Is there a complete list of files that includes the whole configuration?