Another issue I just had with the Launcher trying to update and it was locked. This was the one I downloaded from the link above. To fix this issue I was able to restore my Neverwinter.exe to an earlier version (good thing windows saves backup versions automatically). Not sure why the files are coming up "Locked" though.
After trying all of the options above, I was still getting "error code : 36 file was locked that could not be open for writing" I found that you could delete the following files: C:/Users/Public/Games/Cryptic Studios/Neverwinter/Live/GameClient.ex C:/Users/Public/Games/Cryptic Studios/Neverwinter/Live/crypticError.exe Your…
You should make Foundry work without the need to log into servers. People could then at least work on making quests while the servers are down, which seems to happen a lot. It would be nice to at least be able to work on some of the basic steps of creating quests during down time.