I wasn`t successful. A unpacked Terrain Editor into a default folder on my system disc (by info in TerrainEditor.in).
At first I opened VIETNAMSEA.HFD file. Then I worked with tree bmp. Then I saved it and the program generated a texture.ini file (exactly name I don`t know I am on other PC now). There were written positions of trees on the bmp/tga tree pictures. Then I opened the vietnamJ1.BMP file and inserted the trees to the texture map (120 pieces of trees). I saved texture and terrain Editor generated vietnamJ1.ini file. Then I clicked Save in File menu, program generated VIETNAMSEA.ini file and fell down back to the Windows with a crash table see above (the same problem with save as, etc.). Any tod or lod file didn`t generated.
I am trying to solve my problem still. May be I find any solution. Someone could be faster with giving back trees to the simulator.