MovieMakerLang.dll.mui is considered a type of Dynamic Link Library (DLL) file. Dynamic Link Library files, like MovieMakerLang.dll.mui, are essentially a "guide book" that stores information and instructions for executable (EXE) files - like MpSigStub.exe - to follow. These files were created so that multiple programs (eg. Windows Live Essentials 2012) could share the same MovieMakerLang.dll.mui 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 MUI 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 MovieMakerLang.dll.mui is attempted to be loaded either when Windows Live Essentials 2012 is starting up, or in some cases already running. Some of the most common MovieMakerLang.dll.mui errors include:
- Access Violation at address - MovieMakerLang.dll.mui.
- MovieMakerLang.dll.mui could not be found.
- Cannot find C:\Program Files (x86)\Windows Live\Photo Gallery\en\MovieMakerLang.dll.mui.
- Cannot register MovieMakerLang.dll.mui.
- Cannot start Windows Live Essentials 2012. A required component is missing: MovieMakerLang.dll.mui. Please install Windows Live Essentials 2012 again.
- Failed to load MovieMakerLang.dll.mui.
- The application has failed to start because MovieMakerLang.dll.mui was not found.
- The file MovieMakerLang.dll.mui is missing or corrupt.
- This application failed to start because MovieMakerLang.dll.mui was not found. Re-installing the application may fix this problem.
Your MovieMakerLang.dll.mui file could be missing due to accidental deletion, uninstalled as a shared file of another program (shared with Windows Live Essentials 2012), or deleted by a malware infection. Furthermore, MovieMakerLang.dll.mui file corruption could be caused from a power outage when loading Windows Live Essentials 2012, system crash while loading MovieMakerLang.dll.mui, 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.