CryptUnregisterDefaultOIDFunction function (wincrypt.h)

The CryptUnregisterDefaultOIDFunction removes the registration of a DLL containing the default function to be called for the specified encoding type and function name.


BOOL CryptUnregisterDefaultOIDFunction(
  [in] DWORD   dwEncodingType,
  [in] LPCSTR  pszFuncName,
  [in] LPCWSTR pwszDll


[in] dwEncodingType

Specifies the encoding type to be matched. Currently, only X509_ASN_ENCODING and PKCS_7_ASN_ENCODING are being used; however, additional encoding types may be added in the future. To match both current encoding types, use:


[in] pszFuncName

Name of the function being unregistered.

[in] pwszDll

Name of the DLL where the function is located.

Return value

If the function succeeds, the return value is nonzero (TRUE).

If the function fails, the return value is zero (FALSE).


Requirement Value
Minimum supported client Windows XP [desktop apps only]
Minimum supported server Windows Server 2003 [desktop apps only]
Target Platform Windows
Header wincrypt.h
Library Crypt32.lib
DLL Crypt32.dll

See also

OID Support Functions