StarTeam Extensions include:
The default installation folder is C:\Program Files\Borland\ StarFlow Extensions, but we recommend copying these files to a different folder for each server configuration that runs on the same StarTeam Server. For example, you might use C:\config_name\StarFlow Extensions. In this way, you can ensure that each configuration’s StarFlow Extensions project has different working folders.
Even if you currently run only one server configuration, it is wise to plan ahead. This also ensures that, when you upgrade or reinstall for some other reason, you are unlikely to overwrite any StarTeam Extensions files that you are using.