This policy setting prevents a Federation Service in Active Directory Federation Services (AD FS) from being installed or run.
If you enable this policy setting, installation of a Federation Service fails. If a Federation Service has already been installed, all requests made to it fail.
If you disable or do not configure this policy setting, installation of a Federation Service is allowed and any installed Federation Service functions normally.
Note: A Federation Service may be installed only on Windows Server 2008 Enterprise Edition or Windows Server 2008 Datacenter Edition.
| Registry Hive | HKEY_LOCAL_MACHINE |
| Registry Path | Software\Policies\Microsoft\Windows\ADFS |
| Value Name | DisallowFederationService |
| Value Type | REG_DWORD |
| Enabled Value | 1 |
| Disabled Value | 0 |