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