eCad (eCad.exe 2.4MB) eCAD Manual (eCAD manual.pdf 192kB)
GT/Centriware - version 2.0H (Setup.exe 10.6 MB)
For the GT/Centriware program your system needs the ODBC driver for database access: MDAC 2.5 or more recent version (already existing in many computers). If needed it can be downloaded on the Microsoft website.