So I'm playing the european maplestory and i want to run it in windowed mode so i can watch a video on the side while grinding.

Thing is, Alt+enter doesn't work ( the computer just makes a "Ping" sound), and DXWNd doesn't work either.. I've tried several versions, some are detected as hacking attempt, and most of them just launch the game fullscreen.

Can anyone help me out with this? :(

Thanks in advance.

Why not try to run Nvidia control panel there is an option there to make all games run on window mode. sorry it ATI i have no idea (Nvidia fanboy here).

I'm pretty sure you can't do this without another program.

Most people just use "alt-tab" to go back to the desktop.

Try going to the system information in maplstory itself.. there should be a check-box with "Play in windowed mode"

Check it and it should be done ;)