These files have different names depending on the platform. They are located in the same directory with the executable binaries.


Site Configuration File



Unix (all supported variants)




For a list of L-Soft-supported operating systems for use with LISTSERV, please visit: .

The above listed files are the only configuration files that should be changed manually on any LISTSERV installation, unless otherwise directed by L-Soft Support. Software upgrades may overwrite any other configuration files located in LISTSERV’s home directory (except as noted below). They will never overwrite the files listed above. The intent is to help preserve your system settings from one version to the next so that you do not experience the inconvenience of having to reconfigure LISTSERV after an upgrade.

L-Soft international, Inc., is not responsible for system downtime or mis-operation occasioned by the loss of any changes that you make to configuration files other than the ones listed above.

All LISTSERV sites that use the web administration interface to modify the system configuration in real-time will also have a file called SITECFG.FILE (sitecfg.file under unix) in LISTSERV's A directory*. This is where LISTSERV stores changes to the default or initial configuration when made via the web interface. This file is also never overwritten in an upgrade.

WARNING: DO NOT edit SITECFG.FILE by hand unless specifically directed to do so by L-Soft support.  This file is not intended to be human-editable.

At startup, LISTSERV will first read the original site configuration file, and then will read the SITECFG.FILE for any changes to the original configuration.  Settings in SITECFG.FILE will override settings in SITE.CFG.

* Defined as $LSVROOT/home under unix, installation_drive:\LISTSERV\MAIN under Windows.