toc {
    tclwinhelp.html "Tcl for Windows Help"
    tcl-tk "Tcl/Tk Core"
    twapi_doc "Tcl Windows API extension"
    tcllib_doc "Tcllib Script Library"
    tklib_doc "Tk Script Library"
    tdbc_doc "Tcl Database Connectivity extension"
    thread_doc "Thread package"
    tdom_doc "TDOM extension"
}
