"OdbcConnection" => GetOrAddInstance(connectionTypeName, OdbcProviderAdapter.AssemblyName, OdbcProviderAdapter.ClientNamespace, "Odbc"),
 "OleDbConnection" => GetOrAddInstance(connectionTypeName, OleDbProviderAdapter.AssemblyName, OleDbProviderAdapter.ClientNamespace, "OleDb"),
 DB2iSeriesConstants.ConnectionTypeName => GetOrAddInstance(connectionTypeName, DB2iSeriesConstants.AssemblyName, DB2iSeriesConstants.ClientNamespace, "iDB2"),