Client Patch 4.0.4b

This patch was for the Classic and Third Dawn Clients.


  • Date: September 9, 2004
  • Size: 80,799 bytes
  • Notes: None

Patch Notes

We are planning to release a client patch today, September 9th, at approximately 5:30PM PST (12:30PM GMT), which will include additional support for Publish 27 and the following.

2D Client:

  • Fixed memory leak related to resizing the game play window
  • Reduced CPU utilization

3D Client:

  • Improved efficiency

Both Clients:

  • DVD-ROM drive detection code will now skip examining the a: and b: drives
  • Localization updates

If patched correctly, your current version will display 4.0.4b for both clients. If you have any difficulty receiving this patch, please check the following:

Check the "Patch" directory within your Ultima Online directory (the default location is C:\Program Files\Ultima Online\Patch). This directory should be empty. Any files in this directory should be deleted. If you are unable to connect to the patch server at all, and are using an original (Non-T2A) version of Ultima Online, you may need to update your verinfo file. For details on updating this file, please see the information posted at

Run a virus scan on your computer. Undetected viruses may cause conflicts with patching Ultima Online. For information on up-to-date virus detection software, please visit

If after trying the above, you are still experiencing difficulty patching the Ultima Online client, please visit this web page.

See Also