I have been looking for solution to this problem. I click on NWLauncher.exe. Installed in proper directory. I get
"Failed to Launch Neverwinter Nights 2 (error 2)" I start the game, go into Multiplayer, no servers loaded, do a direct connect to find the servers. But I have to do it every time I want to play. Only thing I can think of is a new update to Windows 10 corrupted something and I have no idea what.