MsiKeyFile_3DOSMODE.dll is considered a type of Dynamic Link Library (DLL) file. Dynamic Link Library files, like MsiKeyFile_3DOSMODE.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. DWG TrueView) could share the same MsiKeyFile_3DOSMODE.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 MsiKeyFile_3DOSMODE.dll is attempted to be loaded either when DWG TrueView is starting up, or in some cases already running. Some of the most common MsiKeyFile_3DOSMODE.dll errors include:
- Access Violation at address - MsiKeyFile_3DOSMODE.dll.
- MsiKeyFile_3DOSMODE.dll could not be found.
- Cannot find C:\Program Files\Autodesk\DWG TrueView 2019 - English\MsiKeyFile\MsiKeyFile_3DOSMODE.dll.
- Cannot register MsiKeyFile_3DOSMODE.dll.
- Cannot start DWG TrueView. A required component is missing: MsiKeyFile_3DOSMODE.dll. Please install DWG TrueView again.
- Failed to load MsiKeyFile_3DOSMODE.dll.
- The application has failed to start because MsiKeyFile_3DOSMODE.dll was not found.
- The file MsiKeyFile_3DOSMODE.dll is missing or corrupt.
- This application failed to start because MsiKeyFile_3DOSMODE.dll was not found. Re-installing the application may fix this problem.
Your MsiKeyFile_3DOSMODE.dll file could be missing due to accidental deletion, uninstalled as a shared file of another program (shared with DWG TrueView), or deleted by a malware infection. Furthermore, MsiKeyFile_3DOSMODE.dll file corruption could be caused from a power outage when loading DWG TrueView, system crash while loading MsiKeyFile_3DOSMODE.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.