The runserver file is an executable script that contains the complete command line required to start an SAP Replication Server. When you install a new SAP Replication Server to your replication system, rs_init creates a runserver file in the installation directory.
The runserver file name is constructed based on the name of the server, truncated to eight characters, if necessary, and a .bat extension. For example, for an SAP Replication Server named ROME_RS, the runserver file is named run_rome.bat.