You can switch between Fullscreen and Windowed mode by pushing "
Alt + Enter
" keys. To start the game in a window. Click somewhere in your desktop. Blank space or an icon, after the LOTD Loading image appears.
If you want your game to always run in a window, without having to click out of the lotd image when it starts:
Right click your LOTD Icon => Properties => In the target field, add -windowed at the end of the .exe (-w and -window doesnt work.)
Or you can do this... But the above is easier/faster to set up.
Go to /System/ folder and open LOTD.ini with Notepad.
In the [WinDrv.WindowsClient] group, find StartupFullscreen=true and change to false. Save the file and you are done !