Assertion error with SSL

Hello,

I have one ore question regarding SSL:

I always get an assertion error for this line:

      retKey = cryptSetAttribute(cryptSession, CRYPT_SESSINFO_ACTIVE, 1);

Whole code:

      // Create the session

      retKey = cryptCreateSession(&cryptSession, CRYPT_UNUSED, CRYPT_SESSION_SSL);

      // Add the server name, user name, and password

      retKey = cryptSetAttributeString(cryptSession, CRYPT_SESSINFO_SERVER_NAME,

            adresse.c_str(), adresse.size());

      retKey = cryptSetAttribute(cryptSession, CRYPT_SESSINFO_SERVER_PORT, httpsPort);       

      // Activate the session

      retKey = cryptSetAttribute(cryptSession, CRYPT_SESSINFO_ACTIVE, 1);

Error:

File: .\cert\ext_rd.c

Line: 569

Expression: flag == ATTR_FLAG_NONE

Regards,

mspoerr