SharePoint 2010 - Custom Error Pages 404

Question

I want to configure a custom 404 page for my SharePoint 2010 environment.

My first task was to create a custom 404 page (htm). and save it under c:\inetpub\custerr\en-US\404Custom.htm

After this I edited the 404 entry from my IIS (Picture) and run a iisreset.

But when I want to open a SharePoint site, I getting a eror message that the path is not correct (Picture 2). So I changed the path to %SystemDrive%\inetpub\custerr\\404Custom.htm

But it doesn´t work!

Why says my IIS that my path ist bad?

(By the way, I don´t found a way to set the "Entry Type" back to Inherited so I removed the custom error entrys from the web.config. And all works fine and the GUI shows Inherited.)

Answer 1

I'd take a look at the following: Sharepoint 2010 Custom Error Pages

I don't think there's a need to do anything, but leave the pages alone in IIS.

1. Place your custom error pages in the custerr directory
2. Edit the web.config file for your webapp(s)
3. Update the customErrors node to include your custom pages
4. Update the httpError node to turn on custom errors
5. IIS Reset

Answer 2

I haven't actually tried this myself in 2010, but I didn't think it was necessary to edit the web.config file manually these days. AFAIK, SharePoint Foundation does not support the custom error pages that are typically used in IIS sites.

Check out this post by Todd Carter.

You could use a feature receiver to deploy a custom error page into the SharePoint root folder (e.g. 14\TEMPLATE\LAYOUTS\1033\customerrorpage.html), then update the SPWebApplication.FileNotFoundPage property with a relative path to your file.

Using the feature you could then turn the capability on and off. Give it a go and let us know how you get on!

EDIT - this MS KB article is probably what you are looking for. As you would expect you can also use PowerShell to set the FileNotFoundPage property.