How Do I Run a Full Screen Game in a Window?
The standard manner of running a full screen game in a window is to use the properties of the desktop shortcut for the game in question.
To access this, right-click the shortcut and select Properties, and go to the Shortcut tab. Here you will find a section labelled Target: - this is the file that launches when the shortcut icon is clicked, and it appears here in quotation ("") marks, as below:
"c:\Program Files\The Adventure Games\Launcher.exe"
In order to force the game to launch in windowed mode, change the line so it reads:
"c:\Program Files\The Adventure Games\Launcher.exe" -window
You can also try –w if -window doesn’t work.
This method will only work if the game supports such a change. If the game doesn’t accept this switch, you might consider looking for the config file in the game’s installation folder and check if there is a manual method of forcing the game to run in windowed mode (for instance an entry that reads windowed = 0). This method is potentially dangerous however, so should not be done without expert help.