Is it possible to use a different numeric format than current locale on windows?

[Pavol Mravec]

I am using gnucash on German Windows but I want to use it in English locale.
I added 'set LC_ALL=en_US' to the gnucash.cmd file. That changed the
language of the GUI but the numeric format used is still German. I want to
use the point as decimal separator instead of comma. Is it possible? I am
using gnucash version  2.2.9 on German Windows XP.

Thanks,

Pavol Mravec