In Windows 2012-SQL 2012 - ODBC Connection hangs if connection pooling is enabled

Then calling SQLDriverConnect method causes the application to hang.

SQLDriverConnect( 
                                        m_hdbc, 
                                        NULL, 
                                        sqltchConnStringIn, 
                                        SQL_NTS, 
                                        ConnStrOut, 
                                        ONE_KB_SIZE, 
                                        &cbConnStrOut, 
                                        SQL_DRIVER_NOPROMPT);

If SQLSetEnvAttr is not called to setSQL_ATTR_CONNECTION_POOLING value, then the call goes through fine and the application does not hang.

The problem occurs only on Windows/SQL 2012. The problem does not occur in Windows 2008 R2/SQL 2008 R2 environment.