SunVTS software is an optional package that may or may not have been loaded when your system software was installed.
To check whether SunVTS is installed, you must access your system either from a console (see "About Setting Up a Console"), or from a remote machine logged in to the system.
% pkginfo -l SUNWvts
If SunVTS software is loaded, information about the package will be displayed.
If necessary, use the pkgadd utility to load the SUNWvts package onto your system from the SMCC Update CD.
Note that /opt/SUNWvts is the default directory for installing SunVTS software.
For more information, refer to the appropriate Solaris documentation, as well as the pkgadd reference manual page.