Vista - Keyboard setup for DOS application under Vista

Hi,
I am running the english language edition of Windows Vista RTM, but with the
"regional setting" formats, location and keyboard set to Danish (as I am
using a danish keyboard).
In general this works fine, and the national danish characters are displayed
correctly in Windows. But when I try to run an old DOS application, the
keyboard seems to switch to english layout, and I am not able to use the
national characters. I looked at the properties in my Windows shortcut for
the DOS application, and there doesn't seem to be any setting that can help
me get danish keyboard layout in my DOS application.
Please - can anyone help with this one ? Thanx...

/Michael