| Operating system | Developer | First release |
|---|---|---|
| Idris | P. J. Plauger | — |
| MacOS Server | Apple Inc. | 1999 |
| RED OS | — | — |
| Windows Embedded Compact 7 | Microsoft | — |
| Windows Home Server 2011 | Microsoft | — |
| Windows NT 3.5 | Microsoft | — |
| Windows XP Professional x64 Edition | Microsoft | — |