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