<BODY><P>Hi Kenneth,<BR>thanks for your hints, it's gonna help me. In fact, skipping reprojection in case of empty map projection definition would be a good deal.<BR>With Mapguide Studio it's for now impossible to override a WMS FeatureSource projection. I didn't knew it was possible with Maestro. So I've tryed with maestro to override the FeatureSource projection with "XY-M" but had the same warning. <BR>It didn't also knew the issue with MapGuide Studio and the projection libraries Mentor and Proj4 with MGOS. Thus, I'm going to take further tests with Maestro. I will let you and the community know if I find a good "workaround" which goes.<BR><BR>Thanks again for sharing your experience!<BR><BR>Rémy<BR></P></BODY>