mlsrv12 -c "connection-string" @data ...

Use this option to read in mlsrv12 command line options from the specified environment variable or configuration file. If both exist with the same name that is specified, the environment variable is used.

For more information about configuration files, see Using configuration files.

If you want to protect passwords or other information in the configuration file, you can use the File Hiding utility to obfuscate the contents of the configuration file.

See File Hiding utility (dbfhide).