pthreadVC1.dll is considered a type of Dynamic Link Library (DLL) file. Dynamic Link Library files, like pthreadVC1.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. iCall) could share the same pthreadVC1.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 pthreadVC1.dll is attempted to be loaded either when iCall is starting up, or in some cases already running. Some of the most common pthreadVC1.dll errors include:
- Access Violation at address - pthreadVC1.dll.
- pthreadVC1.dll could not be found.
- Cannot find C:\Program Files (x86)\iCall\pthreadVC1.dll.
- Cannot register pthreadVC1.dll.
- Cannot start iCall. A required component is missing: pthreadVC1.dll. Please install iCall again.
- Failed to load pthreadVC1.dll.
- The application has failed to start because pthreadVC1.dll was not found.
- The file pthreadVC1.dll is missing or corrupt.
- This application failed to start because pthreadVC1.dll was not found. Re-installing the application may fix this problem.
Your pthreadVC1.dll file could be missing due to accidental deletion, uninstalled as a shared file of another program (shared with iCall), or deleted by a malware infection. Furthermore, pthreadVC1.dll file corruption could be caused from a power outage when loading iCall, system crash while loading pthreadVC1.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.
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