A PPTP client can be a computer configured with either Windows NT Workstation version 4.0, Windows NT Server version 4.0, or Windows 95. The minimum hardware configuration for a PPTP client depends on which operating system is being used.
If the PPTP client is a remote or mobile enterprise user that connects to an enterprise PPTP server by using dial-up lines over the Internet, additional hardware is required, such as an analog modem or Integrated Service Digital Network (ISDN) device and a device for telephone access (for example, a telephone wall jack.)
If the PPTP client is connecting over the LAN to a PPTP server, the additional hardware required is the network adapter that is physically wired to the LAN network.