This policy setting allows you to control whether user's responses to emails are composed inline on the reading pane or in a new window.
If you enable this policy setting, responses to emails are composed in new windows.
If you disable or do not configure this policy setting, responses to emails are composed inline in the reading pane.
| Registry Hive | HKEY_CURRENT_USER |
| Registry Path | software\policies\microsoft\office\15.0\outlook\message |
| Value Name | disablereadingpanecompose |
| Value Type | REG_DWORD |
| Enabled Value | 1 |
| Disabled Value | 0 |