VSTOMessageProvider.dll is considered a type of Dynamic Link Library (DLL) file. Dynamic Link Library files, like VSTOMessageProvider.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. Microsoft Visio Premium 2010) could share the same VSTOMessageProvider.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 VSTOMessageProvider.dll is attempted to be loaded either when Microsoft Visio Premium 2010 is starting up, or in some cases already running. Some of the most common VSTOMessageProvider.dll errors include:
- Access Violation at address - VSTOMessageProvider.dll.
- VSTOMessageProvider.dll could not be found.
- Cannot find C:\Program Files\Common Files\Microsoft Shared\VSTO\10.0\VSTOMessageProvider.dll.
- Cannot register VSTOMessageProvider.dll.
- Cannot start Microsoft Visio Premium 2010. A required component is missing: VSTOMessageProvider.dll. Please install Microsoft Visio Premium 2010 again.
- Failed to load VSTOMessageProvider.dll.
- The application has failed to start because VSTOMessageProvider.dll was not found.
- The file VSTOMessageProvider.dll is missing or corrupt.
- This application failed to start because VSTOMessageProvider.dll was not found. Re-installing the application may fix this problem.
Your VSTOMessageProvider.dll file could be missing due to accidental deletion, uninstalled as a shared file of another program (shared with Microsoft Visio Premium 2010), or deleted by a malware infection. Furthermore, VSTOMessageProvider.dll file corruption could be caused from a power outage when loading Microsoft Visio Premium 2010, system crash while loading VSTOMessageProvider.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.