Deleted in release: 7.0.5
For legacy MMP config only: The name of the file containing your virtual domain mapping (a full path may be provided, but the product's configuration directory is used if no path is provided).
The recommended setting is
vdmap.cfg. Uncomment this line in the configuration file to enable support for virtual domains.
This option is deleted during Unified Configuration migration and its contents are included in vdomain option groups.