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