wsiShared.dll is considered a type of Dynamic Link Library (DLL) file. Dynamic Link Library files, like wsiShared.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. Startup Inspector for Windows) could share the same wsiShared.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 wsiShared.dll is attempted to be loaded either when Startup Inspector for Windows is starting up, or in some cases already running. Some of the most common wsiShared.dll errors include:
- Access Violation at address - wsiShared.dll.
- wsiShared.dll could not be found.
- Cannot find C:\Windows\SysWOW64\wsiShared.dll.
- Cannot register wsiShared.dll.
- Cannot start Startup Inspector for Windows. A required component is missing: wsiShared.dll. Please install Startup Inspector for Windows again.
- Failed to load wsiShared.dll.
- The application has failed to start because wsiShared.dll was not found.
- The file wsiShared.dll is missing or corrupt.
- This application failed to start because wsiShared.dll was not found. Re-installing the application may fix this problem.
Your wsiShared.dll file could be missing due to accidental deletion, uninstalled as a shared file of another program (shared with Startup Inspector for Windows), or deleted by a malware infection. Furthermore, wsiShared.dll file corruption could be caused from a power outage when loading Startup Inspector for Windows, system crash while loading wsiShared.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.