One pc with two keyboards

[atul.raj300302]

I play new smbw on pc using dolphin emulator. But when I plug a usb keyboard, and play 2 player mode, pressing one key makes both the players move simultaneously. Is it possible to play 2 players game with origibal keyboard and one usb keyboard?

 

[Sedivy]

This would really be something to ask on dolphin emulator forums, but basically you need the emulator to be able to differentiate between a usb and ps/2 input and be able to take both at the same time while keeping that differentiation and tying it to specific player. Otherwise both keyboards and windows are functioning as intended.
You might also try TeamPlayer which seems like it might do what you need if it'll play nice with your emulator:
http://www.makeuseof.com/tag/teamplayer-use-multiple-keyboard-and-mice-on-one-system/