Hello I'm french so excuse my language. I find build and mapster not very convenient. So I've written a build editor 2d with VB6. It works pretty well, but I want to join to it with the 3D part of mapster or build. For doing specials things, like textures, height, etc........the 3D part is better. I've found the source code on Ken's site, but I don't how to do it. I would like to integrate the 3d part of build or mapster in my own program. If you can help me. Actually I do a shell of mapster within my program, but I thing it is too slow. Thanks a lot. CLaude