Libraries > Documents > My Games > Alice Madness Returns > AliceGame > Config
2 - Open the file AliceEngine.ini with Notepad.
3 - Find the line
4 - Change FALSE to TRUE:
5 - Save the changes and close.
And now run the game Alice: Madness Returns and enjoy!
Notice: When you unlock the DLC (new dresses and weapons), you can also see "American McGee's Alice" in the main menu, but you haven't got installed the game in your computer (because it's only for Origin version), so... It's impossible to run it.