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