Insert the Software Supplement for the Solaris 7 8/99 Operating Environment for Sun Computer Systems CD (assuming the CDROM is automatically mounted by the vold daemon).
In a shell, change directories to /cdrom/cdrom0/Product, become root, and at the prompt, type:
# pkgadd -d `pwd` SUNWdtpcz SUNWdtpcv SUNWdtpcp
Log out of the system (this completes the installation).
Log back into the system (this initializes the new functionality).