title: Converting GUID to Integer and Back
body: <p>so I have a 3rd party application that I have to interface with, this application needs the userID from my users table.  the problem is that I store my userIDs as GUIDs and the 3rd party app only accepts an integer. so I figure, if there is a way to convert a GUID to an integer then be able to convert it back (as i get communications from their server regarding the userID) then I don't have to recode a too much.  any ideas?</p>