Many utilities and terminal emulation programs from other vendors allow direct communication with a mainframe or host computer using a TCP/IP protocol stack. The protected-mode version of Microsoft TCP/IP included with Windows 95 relies on the Windows Sockets version 1.1 interface. Any terminal emulation program or utility that you use to connect to a mainframe or host computer over Microsoft TCP/IP must support Windows Sockets 1.1.
If you want to connect to a host computer using Telnet or TCP/IP and you are running an application that emulates an IBM 3270 or 5250, or a DEC VT xx computer terminal, you can use Microsoft TCP/IP. Before configuring Windows 95 for Microsoft TCP/IP, make sure that the emulation application supports Windows Sockets 1.1 as a TCP/IP interface option.
If your emulation software requires a TSR to communicate with another vendor's TCP/IP protocol stack, you must remove the TSR and reconfigure the emulation software for Windows Sockets in order to communicate using Microsoft TCP/IP in Windows 95. To determine the proper configuration with Windows Sockets, see the documentation for the emulation software. If the application does not support Windows Sockets 1.1, contact the application vendor to obtain a version that does; otherwise, do not use Microsoft TCP/IP.