id Software's Quake game was able to run on both MS-DOS and Windows 95 by using a single executable, quake.exe, which utilized a DPMI client and server to communicate with the Windows 95 TCP/IP stack. Quake also had a third option to run on Windows 95 through a batch file, q95.bat, which used Mpath's proprietary Chunnel technology to connect to the game's online multiplayer service.