Package WNT: Compilation problems under Visual Studio 8.0

There is a common problem in WNT package:
   for (int i = 0; ...; ...) {
    ...
   }
   i++;

This code violates standard C++ behaviour: the loop iterator variable goes out
of scope at the closing brace of the for-block. However this was allowed in
Microsoft C++ extensions prior to 8.0. In the last version it is required to
modify the source. The alternative (using /Zc:forScope-) does not appear
justified for OCCT because it would preserve the portability problem.