# Parameters

Various parameters when starting dviout are read in the order given below. If the settings conflict within those files, the latest read one will become effective.
1. dviout.par parameter file in the directory where dviout.exe exists.
If this is not found, the Windows directory is also searched.
2. Setting items written in the Registry specified to be read automatically.
3. Settings in the environment variables
4. Specifications on the command line
When the parameter file name in -file: in the parameters is specifically written, that parameter file is read when the file name is interpreted.
See Q_S3 for the parameter file format.
If the -NULL option parameter is specified on the command line, reading from the Registry will be skipped.
List of all the parameters can be shown in the Parameter List and Example of Parameter Setting.