Unfortunately, the only way to fix your problem is by reinstalling the program. It's not recommended that you download DLL files from untrusted sources because this can harm your computer. The file that you are missing is not available to download from the developer, so the only solution is to reinstall the application. You can obtain a download link for the latest version from Software Informer's application page. To be noticed that you need to remove the old application before you can install the new one.