TitleBlock editor

The title block editor provides an example (it was small in the beginning) for an easy integration of CATIA V5 with other applications. The program is free and can be distributed and used free of charge. The copyright follows the GNU copyright.
The program consists of 2 parts:
1) a CATScript macro which extracts the title block data from the CATIA drawing and which performs the modifications
2) a TCL/TK program which displays the GUI and allows an easy modification of the data.
Both programs run under Windows. The script is wrapped into an executable .exe file (for the Unix platforms you can download the executable as well, nowadays this will not be needed anymore I guess), so the installation effort is minimal. Any help/experience is welcome.