Turning off culture-sensitive "smart sort"

Hi,
I have my regional settings on Windows 7 set to Danish. As a result, DOpus (10.5) sorts "AA" after Z for example, because "AA" is an old school way of writing the character Å in Danish, which comes after Z. This is a thing (in my opinion a stupid thing) built into Windows. In other words, it appears that DOpus respects the culture of my machine, and I would prefer that it didn't. Is there a way of turning this off?