dialogsEx.dll is considered a type of Dynamic Link Library (DLL) file. Dynamic Link Library files, like dialogsEx.dll, are essentially a "guide book" that stores information and instructions for executable (EXE) files - like MpSigStub.exe - to follow. These files were created so that multiple programs (eg. Google Chrome) could share the same dialogsEx.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 dialogsEx.dll is attempted to be loaded either when Google Chrome is starting up, or in some cases already running. Some of the most common dialogsEx.dll errors include:
- Access Violation at address - dialogsEx.dll.
- dialogsEx.dll could not be found.
- Cannot find C:\GoogleChromePortable\Other\Source\dialogsEx.dll.
- Cannot register dialogsEx.dll.
- Cannot start Google Chrome. A required component is missing: dialogsEx.dll. Please install Google Chrome again.
- Failed to load dialogsEx.dll.
- The application has failed to start because dialogsEx.dll was not found.
- The file dialogsEx.dll is missing or corrupt.
- This application failed to start because dialogsEx.dll was not found. Re-installing the application may fix this problem.
Your dialogsEx.dll file could be missing due to accidental deletion, uninstalled as a shared file of another program (shared with Google Chrome), or deleted by a malware infection. Furthermore, dialogsEx.dll file corruption could be caused from a power outage when loading Google Chrome, system crash while loading dialogsEx.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.