oldfilm.dat is considered a type of Dynamic Link Library (DLL) file. Dynamic Link Library files, like oldfilm.dat, 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. HD Video Converter Factory) could share the same oldfilm.dat 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 DAT 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 oldfilm.dat is attempted to be loaded either when HD Video Converter Factory is starting up, or in some cases already running. Some of the most common oldfilm.dat errors include:
- Access Violation at address - oldfilm.dat.
- oldfilm.dat could not be found.
- Cannot find C:\Program Files (x86)\WonderFox Soft\HD Video Converter Factory\Data\oldfilm.dat.
- Cannot register oldfilm.dat.
- Cannot start HD Video Converter Factory. A required component is missing: oldfilm.dat. Please install HD Video Converter Factory again.
- Failed to load oldfilm.dat.
- The application has failed to start because oldfilm.dat was not found.
- The file oldfilm.dat is missing or corrupt.
- This application failed to start because oldfilm.dat was not found. Re-installing the application may fix this problem.
Your oldfilm.dat file could be missing due to accidental deletion, uninstalled as a shared file of another program (shared with HD Video Converter Factory), or deleted by a malware infection. Furthermore, oldfilm.dat file corruption could be caused from a power outage when loading HD Video Converter Factory, system crash while loading oldfilm.dat, 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.