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17 Oct 2011  

Windows 7 x64 SP1

BCWipe has a Transparent Wiping option that does something similar - not sure if it does all that you require as I have not used it and I think there might be a performance hit. There is a forum so a search might give more information. BCWipe has quite a few other features too that might entice some like swapfile encryption and various wiping options.
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