http://www.wingate.com/windev.html
This is WinGate's homepage with information about WINGate Developer's Toolkit for fast VxD-based peer-to-peer and client-server transactions between virtual machines under Windows; WinTunnel for integration between core DOS programs and various Windows applications; and RobinHood for remote control of DOS applications from Windows using DDE or DLL. This site provides company information, product information, customer lists, and price lists.