How to hide download urls with asp.net ???

[gagak]

Lets assume that I want to sell a piece of software from a website, and set up a system so that after payment has been completed, the customer will be given a link to the ZIP-file of the "product", how do I make it impossible for the customer to copy the URL of the ZIP-file? (and thereby having the ability to distribute the URL for others to download for free)?<BR><BR>Thanks in advance for any help, <BR><BR>Deep<BR><BR>[email protected]<BR><BR>You might want to check out the post:<BR><BR>http://www.aspmessageboard.com/forum/aspplus.asp?M=299801&P=1&F=36<BR><BR>I posted a reply that would work for your situation as well. When I have bought software online this way, they sent me the link in an email, but the link was only good for a short period of time. Theres really not much they could do to prevent me forwarding that email to someone else, and have them download it too. But I could just as easily download it and share my downloaded file. Thats just the reality of commercial software, you can only make a best effort at protecting it. All you can really do is give each customer a unique url key(from my reply to the above post) thats only valid for a short time, and maybe log how many times it was downloaded it so you can watch for suspicious behavior.