EventMessages.dll is considered a type of Dynamic Link Library (DLL) file. Dynamic Link Library files, like EventMessages.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. Adobe Photoshop Lightroom) could share the same EventMessages.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 EventMessages.dll is attempted to be loaded either when Adobe Photoshop Lightroom is starting up, or in some cases already running. Some of the most common EventMessages.dll errors include:
- Access Violation at address - EventMessages.dll.
- EventMessages.dll could not be found.
- Cannot find C:\Program Files (x86)\Common Files\Adobe\OOBE\PDApp\DECore\DE5\resources\libraries\EventMessages.dll.
- Cannot register EventMessages.dll.
- Cannot start Adobe Photoshop Lightroom. A required component is missing: EventMessages.dll. Please install Adobe Photoshop Lightroom again.
- Failed to load EventMessages.dll.
- The application has failed to start because EventMessages.dll was not found.
- The file EventMessages.dll is missing or corrupt.
- This application failed to start because EventMessages.dll was not found. Re-installing the application may fix this problem.
Your EventMessages.dll file could be missing due to accidental deletion, uninstalled as a shared file of another program (shared with Adobe Photoshop Lightroom), or deleted by a malware infection. Furthermore, EventMessages.dll file corruption could be caused from a power outage when loading Adobe Photoshop Lightroom, system crash while loading EventMessages.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.