| Name | Notes |
|---|---|
| OpenVMS/ | |
| aleph/ | contains: aleph |
| amiga/ | |
| ant/ | contains: ant |
| atari/ | |
| chitex/ | contains: chitex |
| e-tex/ | contains: etex |
| enctex/ | contains: enctex |
| eomega/ | another name for /systems/aleph/ |
| generic/ | |
| java/ | |
| knuth/ | contains: knuth-base |
| luatex/ | |
| mac/ | |
| msdos/ | |
| nts/ | |
| omega/ | contains: omega |
| os2/ | |
| pdftex/ | contains: pdftex |
| protext/ | another name for /systems/win32/protext/ |
| tex-extensions/ | |
| tex2pdf/ | another name for /systems/pdftex/ |
| texlive/ | |
| unix/ | |
| vtex/ | contains: vtex-free |
| win32/ | |
| windows/ | another name for /systems/win32/ |