One or more computer storage media 4, wherein to capture the plurality of commands is to: identify a memory location referenced by one of the plurality of commands; and capture {HEAD ~ the contents} of {TAIL ~ the memory location} 
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One or more computer storage media 4 , wherein to capture the plurality of commands is to : identify a memory location referenced by one of the plurality of commands ; and capture { HEAD ~ the contents } of { TAIL ~ the memory location }
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