http://bugs.winehq.org/show_bug.cgi?id=11973
--- Comment #19 from Juan Lang juan_lang@yahoo.com 2008-04-17 09:56:06 --- Can you check whether the key HKLM\Software\Microsoft\Cryptography\Providers\Trust\Cleanup{31d1adc1-d329-11d1-8ed8-0080c76516c6} exists in the registry? If so, what are its values for $DLL and $Function?
If they're empty, that's why pfnCleanup is NULL. If they're not, the DLL can't be loaded or the function can't be found in it.