Create a shortcut to the diabloii.exe file (or copy the shortcut that is on your desktop or in your start menu), right click on it and select properties. On the shortcut tab and the end of the target line put a -w at the very end of the line. Use that shortcut to launch the game and it will play in a window.
Edit: Gakerd cleared up my Mac comment so I deleted it.
Also wanted to point out that, if you are just looking for better performance, the windowed mode generally only runs faster because it uses software mode, so if you get better performance in windowed than in full screen, you may just want to change your video settings to software mode and play full screen.
Edit: Gakerd cleared up my Mac comment so I deleted it.
Also wanted to point out that, if you are just looking for better performance, the windowed mode generally only runs faster because it uses software mode, so if you get better performance in windowed than in full screen, you may just want to change your video settings to software mode and play full screen.
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It's all just zeroes and ones and duct tape in the end.
It's all just zeroes and ones and duct tape in the end.