Styles missing in EPiServer Edit/Admin mode

If you ever experience this, it’s probably because EPiServer uses a custom remapping for the 404 – Page Not Found error in IIS. To fix it do the following:

1. Open IIS manager, and right click on the web site.
2. Select “Properties” from the dropdown menu.
3. On the “Custom Errors” tab, scroll down the list until you see “404” in the HTTP Error column.
4. Double click the 404 entry to open the properties box.
5. Set the Message type to “URL”.
6. Type “/util/NotFound.aspx” in the URL text box.
7. Click “OK”.
8. Click “OK” in the web site properties dialog to close it.
9. That’s it, now Bob’s your Uncle!