The Out-of-Office Extender Options dialog is opened by clicking the Options button on the About page in the Configuration backstage of the main application window:
The following settings can be modified:
Language: Allows you to specify the language used by the application. This will default to your current Windows language (if available) or you can choose a specific language from the drop-down list.
Colour Scheme: Allows you to choose the colour scheme for the main application window.
Click the Exchange Web Services Settings... button to open the Exchange Web Services Settings dialog, which is used to configure how connections to Exchange Web Services (EWS) are established when resetting out-of-office settings. Click the Domain Configuration... button to open the Domain Configuration dialog, which is used to configure how user accounts are located in Active Directory.
To accept the changes you have made, click the OK button. Otherwise, click the Cancel button to close the dialog.