default windows version

[Insyde]

Hi,
I had a problem loading a second program under wine.
I called the first program with:
wine --winver win2000 pgm1
I input a password and it wirtes a data file, unloads itself
and loads a second program. But there was an error every 
time the second program was to start that send me to the 
debug screen. 
So I found misc/version.c line 196 that the default value to
wine load a program was WIN31, so I changed it to NT2K.

Is there any problem doing this? If not, why is the default still
WIN31?

Thanks,
Ricardo.