mailsync.dll is considered a type of Dynamic Link Library (DLL) file. Dynamic Link Library files, like mailsync.dll, are essentially a "guide book" that stores information and instructions for executable (EXE) files - like Setup.exe - to follow. These files were created so that multiple programs (eg. Microsoft Windows Mobile Device Center for Windows Vista (64-bit)) could share the same mailsync.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 mailsync.dll is attempted to be loaded either when Microsoft Windows Mobile Device Center for Windows Vista (64-bit) is starting up, or in some cases already running. Some of the most common mailsync.dll errors include:
- Access Violation at address - mailsync.dll.
- mailsync.dll could not be found.
- Cannot find C:\Windows\WindowsMobile\mailsync.dll.
- Cannot register mailsync.dll.
- Cannot start Microsoft Windows Mobile Device Center for Windows Vista (64-bit). A required component is missing: mailsync.dll. Please install Microsoft Windows Mobile Device Center for Windows Vista (64-bit) again.
- Failed to load mailsync.dll.
- The application has failed to start because mailsync.dll was not found.
- The file mailsync.dll is missing or corrupt.
- This application failed to start because mailsync.dll was not found. Re-installing the application may fix this problem.
Your mailsync.dll file could be missing due to accidental deletion, uninstalled as a shared file of another program (shared with Microsoft Windows Mobile Device Center for Windows Vista (64-bit)), or deleted by a malware infection. Furthermore, mailsync.dll file corruption could be caused from a power outage when loading Microsoft Windows Mobile Device Center for Windows Vista (64-bit), system crash while loading mailsync.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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