The setup file for GEANT is different for every running period.
You can take the proper setup script form this directory:
afs/cern.ch/na49/library/dev/GEANT/GNA49/exa/
For each run there are two kinds of setup files: phys_on - which includes all relevant physics processes
and the highest level of simulation detail, and phys_off which includes only most important effects (i.e.
decays and multiple scattering).
Below there is an example setup file for the 01I run - phys_off. Here you may look at source file:
setup_00.phys.off.std+.256tb.ksh