Whenever I try installing this mod using it's launcher I seem to get errors. The part of the update where the progress bar says "Checking DesktopDungeons_Data\mainData" seems to run into an error that says "Patching a file Desktop Dungeons\DesktopDungeons_Data\mainData was interrupted. Can't apply patch because file was changed. Check your computer for viruses or reinstall game client."
It then cancels the patch and doesn't allow the game to be booted. Then when I relaunch it it tries installing Update2_3 (don't remember the exact file name) and after doing that it has the same error on "Checking DesktopDungeons_Data\MainData". Third time I open Launcher.exe it just says "Done" and lets me play, but it seems to be the vanilla game since the numbers next to the codex entry seem to be the same, although the daily is disabled.
Do I need to go into my antivirus and tell it to make an exception for Launcher.exe, or do I need to install Extreme Edition into the Desktop Dungeons folder under steamapps\common, because I made a separate folder where I copy and pasted the game files from the steamapps\common folder and installed it into there?