mashupcompression.dll is considered a type of Dynamic Link Library (DLL) file. Dynamic Link Library files, like mashupcompression.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. Microsoft Office 2016 Preview (32 bit)) could share the same mashupcompression.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 mashupcompression.dll is attempted to be loaded either when Microsoft Office 2016 Preview (32 bit) is starting up, or in some cases already running. Some of the most common mashupcompression.dll errors include:
- Access Violation at address - mashupcompression.dll.
- mashupcompression.dll could not be found.
- Cannot find C:\Program Files (x86)\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\mashupcompression.dll.
- Cannot register mashupcompression.dll.
- Cannot start Microsoft Office 2016 Preview (32 bit). A required component is missing: mashupcompression.dll. Please install Microsoft Office 2016 Preview (32 bit) again.
- Failed to load mashupcompression.dll.
- The application has failed to start because mashupcompression.dll was not found.
- The file mashupcompression.dll is missing or corrupt.
- This application failed to start because mashupcompression.dll was not found. Re-installing the application may fix this problem.
Your mashupcompression.dll file could be missing due to accidental deletion, uninstalled as a shared file of another program (shared with Microsoft Office 2016 Preview (32 bit)), or deleted by a malware infection. Furthermore, mashupcompression.dll file corruption could be caused from a power outage when loading Microsoft Office 2016 Preview (32 bit), system crash while loading mashupcompression.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.