means for dynamically embedding {HEAD ~ information} into the purchased software after the purchased software has been requested by {TAIL ~ the user computer}; and 
means for dynamically embedding { HEAD ~ information } into the purchased software after the purchased software has been requested by { TAIL ~ the user computer } ; and
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH