Harry Potter and the Sorceror's Stone

The solution is Vert -. But, there is a major flaw where the bottom of menus are cut off so bad that you can't load saved games.

For me, the config file was in:

C:\My Documents\Harry Potter\HP.ini

[windrv.windowsclient]
FullscreenViewportx=
FullscreenViewporty=

Then, in the user.ini file, edit these lines:

[Engine.PlayerPawn]
DesiredFOV=100.39
DefaultFOV=100.39

The default FOV is 90, so the 16:10 FOV is 100.39487232

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The initial game menu is Vert-, loosing the last two options. You can still quit the game by hitting escape, but the option go straight to the Quidditch game is missing.

The game load menus are Vert -, cutting off the bottom. The option to either load the saved game, or overwrite the existing save is cut-off. This means that the only way to play in WS is to load from a blank save and play all the way through in one sitting. With a Vert- Solution, there seems to be no reason to go to this trouble.

The in-game menu is Vert- as well, but all the options are available. The HUD stretches.