parser_alias.dll is considered a type of Dynamic Link Library (DLL) file. Dynamic Link Library files, like parser_alias.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. MATLAB) could share the same parser_alias.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 parser_alias.dll is attempted to be loaded either when MATLAB is starting up, or in some cases already running. Some of the most common parser_alias.dll errors include:
- Access Violation at address - parser_alias.dll.
- parser_alias.dll could not be found.
- Cannot find C:\Program Files\MATLAB\R2019b\bin\win64\parser_alias.dll.
- Cannot register parser_alias.dll.
- Cannot start MATLAB. A required component is missing: parser_alias.dll. Please install MATLAB again.
- Failed to load parser_alias.dll.
- The application has failed to start because parser_alias.dll was not found.
- The file parser_alias.dll is missing or corrupt.
- This application failed to start because parser_alias.dll was not found. Re-installing the application may fix this problem.
Your parser_alias.dll file could be missing due to accidental deletion, uninstalled as a shared file of another program (shared with MATLAB), or deleted by a malware infection. Furthermore, parser_alias.dll file corruption could be caused from a power outage when loading MATLAB, system crash while loading parser_alias.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.