When enabled this setting appends the Server farm Id to DMF Protocol handler links when using Host Name Site Collections
| Registry Hive | HKEY_CURRENT_USER |
| Registry Path | Software\Policies\MacroView\DMF\UserOptions |
| Value Name | EnableFarmIdForProtocolHandler |
| Value Type | REG_DWORD |
| Enabled Value | 1 |
| Disabled Value | 0 |