Surfer NT is not the porting of Surfer VMS under NT: it's a third party product that B&S sells under the Surfer NT name. Surfer NT takes care of the free form surfaces verification only while for the reverse engineering you must buy the Genesis product (from the same third party). Thanks to everybody for the good comments about the "old" DEA Surfer VMS !

Roberto Maiocco (I was the inventor and the Surfer developers team manager)