| "code","name","usage" | |
| "an","Android","Android" | |
| "as","AtSpi","X11 desktop via AT-SPI 1" | |
| "a2","AtSpi2","X11 desktop via AT-SPI 2" | |
| "em","Terminal Emulator","" | |
| "fv","File Viewer","" | |
| "hd","Hurd","The Hurd" | |
| "lx","Linux","Linux" | |
| "pb","PcBios","MS-DOS" | |
| "sc","Screen","patched screen program" | |
| "wn","Windows","Microsoft Windows" |