Dobra Večer Dusan,
I've tracked down the problem error that you were receiving. The problem is definitely related to the decimal-separator difference between the US and Slovenia.
I am an outside consultant that only works part time with D-Tools, so I can't say what the company's plans are for updates.
The only other idea that I have is that maybe there is some way to start an application with specific regional settings - using some sort of special shortcut or some utility. I've done some Googl-ing, but didn't find anything.
Čao,
__________________
Chris Roth
Visio Guy
http://www.visguy.com