msobj80.dll is considered a type of Dynamic Link Library (DLL) file. Dynamic Link Library files, like msobj80.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 Visual Studio 2010 Ultimate) could share the same msobj80.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 msobj80.dll is attempted to be loaded either when Microsoft Visual Studio 2010 Ultimate is starting up, or in some cases already running. Some of the most common msobj80.dll errors include:
- Access Violation at address - msobj80.dll.
- msobj80.dll could not be found.
- Cannot find C:\Program Files (x86)\Common Files\microsoft shared\VSA\9.0\VsaEnv\msobj80.dll.
- Cannot register msobj80.dll.
- Cannot start Microsoft Visual Studio 2010 Ultimate. A required component is missing: msobj80.dll. Please install Microsoft Visual Studio 2010 Ultimate again.
- Failed to load msobj80.dll.
- The application has failed to start because msobj80.dll was not found.
- The file msobj80.dll is missing or corrupt.
- This application failed to start because msobj80.dll was not found. Re-installing the application may fix this problem.
Your msobj80.dll file could be missing due to accidental deletion, uninstalled as a shared file of another program (shared with Microsoft Visual Studio 2010 Ultimate), or deleted by a malware infection. Furthermore, msobj80.dll file corruption could be caused from a power outage when loading Microsoft Visual Studio 2010 Ultimate, system crash while loading msobj80.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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