You are not likely to get any assistance here in obtaining a "proper crack". CADTutor does not condone the use of cracked software.
Isn't the program shareware? The download is free. It is supposed to be try and buy. So, try it once then decide whether or not you want to buy it.
"Since version 2010 you can directly convert a "watertight" 3D mesh (polyface mesh) to a 3D solid. To keep the original unsmoothed facets, set the FACETERSMOOTHLEV variable to 0. Use the MESHSMOOTH command to convert the 3D mesh to a MESH object (if necessary) and then make the 3D solid from it using the CONVTOSOLID command (right-click on the mesh and choose "Convert mesh to")."
Source: the CADforum.