How to avoid duplicate computer SIDs when building machines from an image

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I'm building a test lab that requires a number of Windows Server 2003 Server Pack 1 virtual machines and hence I've built a single image and have replicated it for each instance. To avoid the problem of each machine having the same identity (computer SID) at the O/S level I'm using a cool utility named "NewSID". John Howard put me onto this utility - it's cool because it's so simple and unlike "Sysprep" it doesn't result in bloated virtual machines and it's free.

Click here to browse to the "NewSID" section of the excellent SysInternals website to find out more.