A0000039.rbf is considered a type of Dynamic Link Library (DLL) file. Dynamic Link Library files, like A0000039.rbf, are essentially a "guide book" that stores information and instructions for executable (EXE) files - like accicons.exe - to follow. These files were created so that multiple programs (eg. Office) could share the same A0000039.rbf 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 RBF 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 A0000039.rbf is attempted to be loaded either when Office is starting up, or in some cases already running. Some of the most common A0000039.rbf errors include:
- Access Violation at address - A0000039.rbf.
- A0000039.rbf could not be found.
- Cannot find C:\System Volume Information\_restore{B22D30E0-94DC-4BEA-9AF0-1DF57F85464B}\RP2\A0000039.rbf.
- Cannot register A0000039.rbf.
- Cannot start Office. A required component is missing: A0000039.rbf. Please install Office again.
- Failed to load A0000039.rbf.
- The application has failed to start because A0000039.rbf was not found.
- The file A0000039.rbf is missing or corrupt.
- This application failed to start because A0000039.rbf was not found. Re-installing the application may fix this problem.
Your A0000039.rbf file could be missing due to accidental deletion, uninstalled as a shared file of another program (shared with Office), or deleted by a malware infection. Furthermore, A0000039.rbf file corruption could be caused from a power outage when loading Office, system crash while loading A0000039.rbf, 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.