IIS 7.0 doesn't display custom error pages

Question

I\'m running an application that has its own error handlers. Error pages are displayed properly while testing in dev environment (error pages are displayed properly).
Howe

Answer 1

Awe is right (+1), but in addition: IIS 7 has special handling described in the blog post you linked and this MSDN article. If you are using HandleErrorAttribute on your action, this is already done for you. If not, you'll need to set:

filterContext.HttpContext.Response.TrySkipIisCustomErrors = true;

...yourself.