# Striim 3.9.6 documentation

All Striim configuration is done by editing properties in striim/conf/startUp.properties, which as discussed in the following topics you must edit before starting Striim for the first time. startUp.properties.default is a second copy of the file, which may be useful for reference.
If you need to edit startUp.properties  after installation, we strongly recommend that you first make a backup copy.