OGG-05203
The SQL Server Native Client 11 driver is known to cause a memory leak when used to connect to SQL Server 2012 or later.
Cause
SQL Server Native Client 11 when used with OLE DB causes a memory leak see http://support.microsoft.com/kb/2894115 and http://support.microsoft.com/kb/2881661 for more details.
Action
Please switch to ODBC or upgrade to the patch levels as per the referenced KB articles.