The HTTPS/VPN option is not included in the TSplus setup program. It shall be downloaded and installed separatly.
TSplus must be installed before installing the HTTPS/VPN option.
TSplus must be at least on release 3.40.11.70; if your TSplus server is a former release, it is requested to update TSplus before installing the HTTPS/VPN option.
Click on the picture to download free your TSplus setup program