C.2.46 4D CAD 1.0.9.3

• (431) Fixed a crashing bug in CADRemoveLayer on Windows. The crash was caused by a 80x86 compiler bug, that has been worked around.
  
  
• (432) Fixed a bug in the bounds of some arcs.
  
  
• (433) Worked around a problem in DXF files for objects with a negative z-extrusion vector.