When files like -vfn: or -TEXPK: are specified, the directory where dviout is installed can be specified as the standard.

If "^x" is added at the beginning of the path name, it is replaced by the dviout installation directory. For example, if dviout.exe was installed in c:\dviout, the setting

-gen:^x\utility\template

is identical to the 

-gen:c:\dviout\utility\template

setting.