Explanation: FreeTDS is a free open source programming library, that implements the Tabular Data Stream protocol. It can be used in place of Sybase's db-lib or ct-lib libraries. It also includes an ODBC library. It allows many open source applications such as Perl and PHP (or your own C or C++ program) to connect to Sybase ASE or Microsoft SQL Server.
Other definitions in programming such as FreeTDS in Dictionary F.