All: Okay, I've downloaded ns-allinone-2.1b4a.tar.gz. I've ungzip'ed and un tar'ed it. My problem is that I now have some html files in /doc and some configuration files in /conf, but no makefile and no executables. I do have a file called mkdep, but it wants arguments and I have none to give. Help! Cordially, Allan Yarbrough