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.)