When you start WinMLS, the settings you had when you closed WinMLS will be loaded. This is default, but can be changed. You can do this from Setup->Options....
In Settings to be loaded on startup, there are three alternatives. The setting is useful in many situations. (Limitaiton: This setting will not work if using a setup with multiple windows. The user will be notified about this.)
You may also want to load the setup you used when you last used WinMLS, but not with the changes, if any, you made. Then select the setting.
In some cases it is desired to load the same setup each time WinMLS starts. Then you can be sure that the settings are exactly the same each time WinMLS is opened, and you are not dependent on changes you did the last time you used WinMLS.
Do this by making sure the radio button below is selected and select the setup you wish to load from the list shown below.
In the example above we have set WinMLS to load the setup named Sound System_Surround (5.1). You should select the setup you want to use for your application.
Now exit WinMLS and restart it again. When WinMLS is restarted, it should load the setup you selected above.