Fix error and download avformat-57.dll


ERROR: The application could not start because avformat-57.dll was not found.

ERROR: The entry point to the procedure avformat-57.dll was not found.

ERROR: dllregisterserver entry point not found - how to fix avformat-57.dll

How to register avformat-57.dll in Windows

How to unregister a DLL?

Causes of errors in the file avformat-57.dll