How to stop connecting to an insecured wireless network in Windows Vista?

I want to stop my windows vista desktop connecting automatically to my neighbor's unsecured wireless.

I have a secured wireless connection that I want to connect to by default every time I turn on my desktop.How to stop connecting to an insecured wireless network in Windows Vista?
Go to start/connect_to and select the connection profile. Right click it and look at properties. On the one you want to use, select ';connect when in range'; and de-select ';connect to a more preferred network if available';.



Then go to the unwanted connection and reverse these selections.