libbz2.dll is considered a type of Dynamic Link Library (DLL) file. Dynamic Link Library files, like libbz2.dll, are essentially a "guide book" that stores information and instructions for executable (EXE) files - like 7za.exe - to follow. These files were created so that multiple programs (eg. BullGuard Internet Security) could share the same libbz2.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 libbz2.dll is attempted to be loaded either when BullGuard Internet Security is starting up, or in some cases already running. Some of the most common libbz2.dll errors include:
- Access Violation at address - libbz2.dll.
- libbz2.dll could not be found.
- Cannot find C:\Program Files\BullGuard Ltd\BullGuard\libbz2.dll.
- Cannot register libbz2.dll.
- Cannot start BullGuard Internet Security. A required component is missing: libbz2.dll. Please install BullGuard Internet Security again.
- Failed to load libbz2.dll.
- The application has failed to start because libbz2.dll was not found.
- The file libbz2.dll is missing or corrupt.
- This application failed to start because libbz2.dll was not found. Re-installing the application may fix this problem.
Your libbz2.dll file could be missing due to accidental deletion, uninstalled as a shared file of another program (shared with BullGuard Internet Security), or deleted by a malware infection. Furthermore, libbz2.dll file corruption could be caused from a power outage when loading BullGuard Internet Security, system crash while loading libbz2.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.