Hi, I installed ns-2.1b9a in the Windows XP successfully(I don't use cygwin,in that it turns out to
be a failure after two days' try ).However,it seems that "ns example1a.tcl" doesn't work which was copyed to the directory C:\NetSim\ns-2.1b9a.In addition, I input "ns" and then "%" appears.But when I try "ns exampe1a.tcl"again,it says "Warning:use bakward compatibility mode<br> error when calling class OldSim:example1a.tcl" Does anyone know how to run the script in my computer?Thanks in advanc! Regards Li An