http://blogs.msdn.com/sridhara/archive/2008/10/16/how-do-i-use-securestring-type-in-sharepoint-2007.aspxSecureString is the type that's used for passwords in SharePoint 2007. You might find its use when you are automating some "higher level" administration operation (like creating a web application for example). How do you use it is shown below: 1: privateen-USCommunityServer 2.1 SP1 (Build: 61025.2)http://blogs.msdn.com/sridhara/archive/2008/10/16/how-do-i-use-securestring-type-in-sharepoint-2007.aspx#9006696Mon, 20 Oct 2008 02:14:43 GMT91d46819-8472-40ad-a661-2c78acb4018c:9006696Links (10/19/2008) &laquo; Steve Pietrek - Everything SharePoint<p>PingBack from <a rel="nofollow" target="_new" href="http://stevepietrek.com/2008/10/19/links-10192008/">http://stevepietrek.com/2008/10/19/links-10192008/</a></p> http://blogs.msdn.com/sridhara/archive/2008/10/16/how-do-i-use-securestring-type-in-sharepoint-2007.aspx#9190683Wed, 10 Dec 2008 14:53:33 GMT91d46819-8472-40ad-a661-2c78acb4018c:9190683Joe Chung<p>It's sad that the SetApplicationCedentialKey API has been misspelled in the MSDN documentation for several months now.</p>http://blogs.msdn.com/sridhara/archive/2008/10/16/how-do-i-use-securestring-type-in-sharepoint-2007.aspx#9873836Tue, 18 Aug 2009 13:00:10 GMT91d46819-8472-40ad-a661-2c78acb4018c:9873836Ashwin Athreya<p>Hi Sridhar,</p> <p>I had a problem of adding Multiple choices to the Drop Down to a custom field in a list. But i have looked at your way of adding them through the StringCollection Class. It really solved my problem. Thanks a lot.</p>