A computer program stored on {HEAD ~ a computer readable memory device} for operating {TAIL ~ a server computer} to download purchased software to a user computer over a network, the computer program comprising: 
A computer program stored on { HEAD ~ a computer readable memory device } for operating { TAIL ~ a server computer } to download purchased software to a user computer over a network , the computer program comprising :
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH