f:> s2ibis.exe 1st.cir

S2IBIS2.EXE v1.1 -- North Carolina State University
S2IBIS2.EXE: Reading input file 1...

S2IBIS2.EXE: Error at line 1: parse error
         Token: *
s2ibis: Please begin s2ibis command file with [IBIS Ver] command.