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