This is a modified "UoDemo.exe" with the following patches applied:
  - almost all server code has been disabled
    (except the main loop because that one is responsible for shutting down the exe)
  - renamed the class+window name to "UO Demo PvP/PvM Client" (was Ultima Online)
  - renamed the file mapping to "UoDmClntApp" (was UoClientApp)
  - added an increased Sleep patch to make the uodemo consume less power on modern PC's
  - the "UoDmClnt.exe" requires "UoDmClnt.cfg" to be in your UO directory
    (contents are : DemoServer=IP,PORT)
  - added an environment REGKEYNAME that allows you to override the Ultima Online registry key
    (HKLM\SOFTWARE\Origin Worlds Online\Ultima Online\%REGKEYNAME%)
    (defaults to 1.0 if not set)
  - updated the version identifier (is missing for UoDmClnt Publish 2)
  - disabled to automatic logon process
    (how your Account Name is processed depends on the UoDemo+ server you are connecting to!)

Greetings.