udd_jmi.dll is considered a type of Dynamic Link Library (DLL) file. Dynamic Link Library files, like udd_jmi.dll, are essentially a "guide book" that stores information and instructions for executable (EXE) files - like klist.exe - to follow. These files were created so that multiple programs (eg. MATLAB) could share the same udd_jmi.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 udd_jmi.dll is attempted to be loaded either when MATLAB is starting up, or in some cases already running. Some of the most common udd_jmi.dll errors include:
- Access Violation at address - udd_jmi.dll.
- udd_jmi.dll could not be found.
- Cannot find C:\Program Files\MATLAB\R2019b\bin\win64\udd_jmi.dll.
- Cannot register udd_jmi.dll.
- Cannot start MATLAB. A required component is missing: udd_jmi.dll. Please install MATLAB again.
- Failed to load udd_jmi.dll.
- The application has failed to start because udd_jmi.dll was not found.
- The file udd_jmi.dll is missing or corrupt.
- This application failed to start because udd_jmi.dll was not found. Re-installing the application may fix this problem.
Your udd_jmi.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, udd_jmi.dll file corruption could be caused from a power outage when loading MATLAB, system crash while loading udd_jmi.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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