Wintin 95 will work on a Windows 95 or Windows NT machine which is connected to the internet directly or via a modem and PPP or SLIP. Wintin 95 will also work over a straight 'dial-up' connection to a host. For decent performance, use Wintin 95 on a 486/66 or Pentium. It will probably be OK on slower machines, but you may find that it (or your machine, blame what you will) can't keep up with the fast scroll that you sometimes get on muds, particularly when fighting in a group.
Wintin 95 is a 32-bit program and it will only work with a 32 bit WINSOCK. It will not work with 16-bit WINSOCKs such as Trumpet. If you're still using Trumpet or some other WINSOCK you brought with you from Windows 3.1, now is the time to scrap it and start using the Dial-Up Networking that comes with Windows 95 or Windows NT.