mssign32.dll Error Fix

What is a DLL?

DLL (Dynamic Link Library) files contain computer code and resources that can be used by multiple programs at the same time. This uses less system memory and helps your computer system run more efficiently. DLL files give program developers the ability to reuse code to add features to several programs without the need to write new code for each program.

There are many programs that require DLL files to function properly so when one of them is damaged or missing it will cause program crashes and poor system performance.

What is mssign32.dll?

The mssign32.dll file is included in the Cryptographic Service Provider (CSP)-a software library implementing the Cryptographic Application Programming Interface (CAPI) in Windows. CSP has encoding and decoding functions which computer application programs may use.

DLL Files in the CSP library such as the file mssign32.dll are implemented as a special type of DLL with special restrictions in terms of loading and use. For example the file mssign32.dll must be digitally signed by Microsoft and the signature is verified when Microsoft Windows loads the CSP. After loading the file Windows re-scans the CSP to detect tampering which could be done either by malicious software such as computer viruses and spyware or by the user itself. Lastly the file mssign32.dll also acts as a pass-through layer that facilitates the communication between the Windows Operating System (OS) and the actual implementation of CSP.

The mssign32.dll file has numerous functions first of which are DLLRegisterServer and DLLUnregisterServer. These two are for the creation and removal of registry entries for all classes supported in the sets of modules of the file mssign32.dll. The second set of functions of the file mssign32.dll is the FreeCryptProvFromCert and GetCryptProvFromCert, which releases and gets the private key or simply referred to as a handle to a CSP. The handle is used for authentication purposes and upon acquisition of this through the FreeCryptProvFromCert and GetCryptProvFromCert a temporary container is created. This temporary container in turn is deleted by the PvkFreeCryptProv function still a component of the file mssign32.dll. The said functions will only get to work if one creates a user defined header file and use the LoadLibrary and GetProcAddress functions to dynamically link to mssign32.dll.

Recommended fix if you are experiencing mssign32.dll error messages:

DLL files are important parts of your operating system and many programs require them to function. When these files become damaged or are missing it causes poor system performance and system crashes. To fix these problems the user must replace the damaged file with a valid working version. If a working version cannot be found the user may perform a reinstallation of their operating system.

Mssign32.dll is created by:

Microsoft Corporation

Known file path:


Click the Download button below to run a free dll scan to find out if you have missing or corrupt dll files on your computer.

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