acui23.dll is considered a type of Dynamic Link Library (DLL) file. Dynamic Link Library files, like acui23.dll, are essentially a "guide book" that stores information and instructions for executable (EXE) files - like Setup.exe - to follow. These files were created so that multiple programs (eg. DWG TrueView) could share the same acui23.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 acui23.dll is attempted to be loaded either when DWG TrueView is starting up, or in some cases already running. Some of the most common acui23.dll errors include:
- Access Violation at address - acui23.dll.
- acui23.dll could not be found.
- Cannot find C:\Program Files\Autodesk\DWG TrueView 2019 - English\acui23.dll.
- Cannot register acui23.dll.
- Cannot start DWG TrueView. A required component is missing: acui23.dll. Please install DWG TrueView again.
- Failed to load acui23.dll.
- The application has failed to start because acui23.dll was not found.
- The file acui23.dll is missing or corrupt.
- This application failed to start because acui23.dll was not found. Re-installing the application may fix this problem.
Your acui23.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, acui23.dll file corruption could be caused from a power outage when loading DWG TrueView, system crash while loading acui23.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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