Hey

thanks a lot for your quick responses. Actually these settings are the
key! If I change the "Region- and Language Options" to english (US)
the dateformat is correct. I just hoped that there would be a
workaround or something. But probably this is the only solution.
Maybe I have to do some programming to check the content for e.g. Dez,
Okt, etc. and replace it with Dec, Oct and so on. This will make my
application slow but it should work.

Thanks again!

Cheers Alex