Sql Server 2008 Native Client Here

For all its technical merit, SQLNCLI10 was a deployment nightmare. Unlike the bundled sqlsrv32.dll ODBC driver, the Native Client required a separate redistributable installer. Versioning was particularly painful:

: This feature allowed storing large BLOB data (e.g., documents, videos) in the file system while maintaining transactional consistency. SQLNCLI10 introduced a special IOpenRowset interface with the FILESTREAM_ON hint, returning a Win32 file handle. An application could then use ReadFile / WriteFile directly on the handle—bypassing TDS entirely for the BLOB data, reducing server load. sql server 2008 native client

Modern attackers have reverse-engineered TDS; unpatched SQLNCLI10 instances are vectors for: For all its technical merit, SQLNCLI10 was a