MAPIHelperProxyPS.dll is considered a type of Dynamic Link Library (DLL) file. Dynamic Link Library files, like MAPIHelperProxyPS.dll, are essentially a "guide book" that stores information and instructions for executable (EXE) files - like OneDriveSetup.exe - to follow. These files were created so that multiple programs (eg. Nokia PC Suite) could share the same MAPIHelperProxyPS.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 MAPIHelperProxyPS.dll is attempted to be loaded either when Nokia PC Suite is starting up, or in some cases already running. Some of the most common MAPIHelperProxyPS.dll errors include:
- Access Violation at address - MAPIHelperProxyPS.dll.
- MAPIHelperProxyPS.dll could not be found.
- Cannot find C:\Program Files (x86)\Nokia\Nokia PC Suite 7\x64\MAPIHelperProxyPS.dll.
- Cannot register MAPIHelperProxyPS.dll.
- Cannot start Nokia PC Suite. A required component is missing: MAPIHelperProxyPS.dll. Please install Nokia PC Suite again.
- Failed to load MAPIHelperProxyPS.dll.
- The application has failed to start because MAPIHelperProxyPS.dll was not found.
- The file MAPIHelperProxyPS.dll is missing or corrupt.
- This application failed to start because MAPIHelperProxyPS.dll was not found. Re-installing the application may fix this problem.
Your MAPIHelperProxyPS.dll file could be missing due to accidental deletion, uninstalled as a shared file of another program (shared with Nokia PC Suite), or deleted by a malware infection. Furthermore, MAPIHelperProxyPS.dll file corruption could be caused from a power outage when loading Nokia PC Suite, system crash while loading MAPIHelperProxyPS.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.