In Windows 7, Accowin/Belcofin/Finasset may use settings that differ from the computer's local settings.
For example, Accowin/Belcofin/Finasset uses m/d/yyyy instead of dd/mm/yyyy, which is the local setting.
The solution to this is:
Set the local setting from Dutch (Belgium) to English:
Set the local setting from English to Dutch(belgium):