I haven't had much luck finding anything for you, but if there was a place to search it would be http://www.outlookcode.com. Seems like to me you don't really have to delete the DL, but just update it. I did find an article describing how to delete all the members.

http://www.outlookcode.com/codedetail.aspx?id=235

Then you could just re-ad the users?

I can see some use for this in an envirnoment I work for, so if you can find anything, I'll be glad to help as much as I can.
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(... better days ahead)