Democracy 3 won't start, dll error

The game fails to start and gives me an error message saying the reason is that the file steam_api.dll is missing. It did this after I installed the latest patch. The installer I have for the game is

Updating because I just got the new installer version from It’s I’m going to try installing and running the game again. Hope it works.

Never mind. It’s not a problem anymore. Game works fine.