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