I have some software that has issues with date format; it was built in the US and throws errors sometimes when it encounters Australian format (DD/MM/YYYY).
Years ago I was able to defeat the problem by changing two setting on the OS to US format. One was Regional Settings, which was set to English (US).
I can’t remember where the other format setting was.
The original machine I did this was on an XP but now I have a Win 7.
Anyone have ideas where a second date format / regional setting might be?