| Microsoft Windows NT 4.0 Server | Microsoft Windows 2000 Server | Microsoft Windows Server 2003 (R2) | Microsoft Windows Server 2008 (R2) |
| Microsoft Exchange Server 2000 | Microsoft Exchange Server 2003 | Microsoft Exchange Server 2007 | Microsoft Exchange Server 2010 |
| Microsoft SQL Server 2000 | Microsoft SQL Server 2005 | Microsoft SQL Server 2008 (R2) | |
| Microsoft Identity Integration Server (MIIS) 2003 | Microsoft Identity Lifecycle Manager (ILM) 2007 | Microsoft Forefront Identity Manager (FIM) 2010 | |
| Critical Path Meta Directory Server | | | |
| IBM Directory Server 4.x | IBM Directory Server 5.x | | |