ZipGrep is a utility that can list and search zip (.war, .ear, .jar, etc) archives for text patterns, without the need to extract the archive's contents.
One of a set of tools we're offering as a way to say thank you for being a part of the community.
http://www.parallelfun.com/post/2010/12/22/Configure-Language-Region-Sharepoint-2010.aspx
In that feature receiver you'll need to put code that resembles this:
mySiteWeb.RegionalSettings
mySiteWeb.RegionalSettings
…
mySiteWeb.Update();