Operating Systems and Servers
| Microsoft DOS 3.0 to 6.22 | ★★★★★ |
| Microsoft Windows 3.11 to 11 | ★★★★★ |
| Windows Server 2003 to Windows Server 2019 | ★★★★★ |
| OS/2 | ★★★ |
| OSX | ★★★ |
| Linux (Ubuntu, SuSe) | ★ |
| IOS | ★★★ |
| VMware / VSphere | ★★★★ |
| Hyper‐V | ★★★★★ |
| Microsoft Exchange 2007 / 2010 | ★★★★ |
| Microsoft SharePoint | ★ |