Modal forms in TaskBar with D1 under W95/NT

I have the following problem :

We are developping a 16 bit App (D1) that runs under W95/NT. When we
open a
modal form, it appears in the taskbar, next to the taskbar
representation of
the main form. This bothers us, because now the user can select the main

form clicking on the taskbar.

How can we avoid this in D1 ?

The behaviour we would like to see, is that there is always one
taskbar-icon
with the caption of the form that has focus.

We guess the problem comes from  the 16-32 bit  difference, because
compiling the app in D3 does not give the problems. However, since the
app
has to run on both platforms ...

Thanks for suggestions.

Thomas Zeppenfeldt