From the package man-page: MySQLTcl is a collection of Tcl commands and a Tcl global array that provide access to MySQL database servers. MySQLTcl is nothing more than a patched version of a patched version of Hakan Soderstrom's patch of Tom Poindexter's Sybtcl. Mysqltcl is binary Tcl library (extension) written in C language that use direkt official MySQL C-API. Almost all Tcl commands correspond to MySQL C-API functions. For detail documentation see official MySQL C- API manual. WWW: http://www.xdobry.de/mysqltcl/