Re: xterm under windows-XP-pro

> At that point, launching executable 'sdc' opens properly the dialog window 
> to enter 'input.txt' as execution parameter,
> but at validation (OK), no execution window is opened and the following 
> message ...

I suspect you have checked the box 'use external terminal', which is not
part of the tutorial.

If you want to enable this feature, you need to set the preferences properly on
your environment (see the documentation for more details).

Arno