Clean your registry and optimize your computer.Install all Windows updates and any available driver updates.Update the application to the latest version.Re-Install the application that requires steam_api.dll.Re-installing the application may fix this problem. This application has failed to start because steam_api.dll was not found. If the file is missing you may receive an error and the application may not function properly. When an application requires steam_api.dll, Windows will check the application and system folders for this.
