ffmpegsource2.dll is considered a type of Dynamic Link Library (DLL) file. Dynamic Link Library files, like ffmpegsource2.dll, are essentially a "guide book" that stores information and instructions for executable (EXE) files - like avc.exe - to follow. These files were created so that multiple programs (eg. Xilisoft Video Converter Ultimate) could share the same ffmpegsource2.dll file, saving valuable memory allocation, therefore making your computer run more efficiently.
Unfortunately, what makes DLL files so convenient and efficient, also makes them extremely vulnerable to problems. If something happens to a shared DLL file, either it goes missing or gets corrupted in some way, it can generate a "runtime" error message. Runtime is pretty self-explanatory; it means that these errors are triggered when ffmpegsource2.dll is attempted to be loaded either when Xilisoft Video Converter Ultimate is starting up, or in some cases already running. Some of the most common ffmpegsource2.dll errors include:
- Access Violation at address - ffmpegsource2.dll.
- ffmpegsource2.dll could not be found.
- Cannot find C:\Program Files (x86)\Xilisoft\Video Converter Ultimate\ffmpegsource2.dll.
- Cannot register ffmpegsource2.dll.
- Cannot start Xilisoft Video Converter Ultimate. A required component is missing: ffmpegsource2.dll. Please install Xilisoft Video Converter Ultimate again.
- Failed to load ffmpegsource2.dll.
- The application has failed to start because ffmpegsource2.dll was not found.
- The file ffmpegsource2.dll is missing or corrupt.
- This application failed to start because ffmpegsource2.dll was not found. Re-installing the application may fix this problem.
Your ffmpegsource2.dll file could be missing due to accidental deletion, uninstalled as a shared file of another program (shared with Xilisoft Video Converter Ultimate), or deleted by a malware infection. Furthermore, ffmpegsource2.dll file corruption could be caused from a power outage when loading Xilisoft Video Converter Ultimate, system crash while loading ffmpegsource2.dll, bad sectors on your storage media (usually your primary hard drive), or quite commonly, a malware infection. Thus, it's critical to make sure your anti-virus is kept up-to-date and scanning regularly.