Pix has corrected a couple of Forgotten World/Beautiful Britannia-related issues in his handy Ultima Patcher tool:

• Should cure “Unable to cast COM object of type ‘System.__ComObject’ to interface type ‘Shell32.Shell’” errors on certain versions of Windows. I’ve not been able to confirm that this is fixed as I can’t recreate it myself and the person who reported it hasn’t got back to me yet. It occurred when renaming your avatar or clicking the links to Forgotten World/Beautiful Britannia. If anyone still gets these errors let me know and I will try again but I’m 99% sure it will work now.
• Fixes download link for Beautiful Britannia + Forgotten World links to point to current location.

You’ll find the Ultima Patcher on various subdomains here, since it pertains to and applies patches for basically every Ultima game. I believe, however, that thanks to Goldenflame Dragon’s careful ministrations, all of these entries redirect here. And of course, you can also download the Patcher from Pix’s site proper.