VPLUS applications must use a FORMSPEC file to specify screen layout.
VT3K/9000 does not support non-VPLUS blockmode or screen-oriented applications.
VT3K/9000 does not support hybrid applications that mix VPLUS and MPE intrinsic calls for terminal communications.
VT3K/9000 is not supported from a Telnet or rlogin session.
VT3K/9000 is not supported on workstations running DTTERM.
