> 1. -> I'm running Win2000 and I tied your precompiled binaries to start up. > Binary ns-2.1b8a.exe doesn't work here. It asks for the DLL called tcl83.dll > and stops. - What can I do? Can I download or get this DLL somewhere? You can download binaries for tcl and install. This should install all of the necessary resources. Regards Joshua Mentz