IDBSP10.ZIP is version 1.0 of my DOS port of id's own BSP builder for DOOM. The zipfile contains two programs, both with full source included. 1) IDBSP.EXE - the BSP builder 2) WAD_DWD.EXE - a WAD->DWD converter id's BSP builder takes a DWD file as input, and generates a WAD file. A DWD file is bascially an "ASCII WAD" file; it is a text file describing the linedefs, sidedef, sectors, and things on a level. The BSP builder creates the remaining resources. Note that IDBSP automatically builds the REJECT resource, to help speed up all those line-of-sight calculations. See the README.TXT file in the zip file for complete information. Comments, questions, etc. are always welcome via e-mail..... Happy DOOMing! Ron Rossbach (ej070@cleveland.freenet.edu)