Can I prevent a spreadsheet from being copied?

I'm going to publish a retirement nest egg calculator to the web and want to
know if I can prevent buyers from copying it, or if I can restrict them to
being only able to use it on one computer. I plan to supply any purcashed
copies by email.

Thanks, George Forbes

Hi George

This needs a lot of creative, part evil, VBA programming, and you must
ensure that macros are enabled for the file to work. Very complicated.

HTH. Best wishes Harald

"Nest Egg George" Nest Egg wrote in
message ...
I'm going to publish a retirement nest egg calculator to the web and want
to
know if I can prevent buyers from copying it, or if I can restrict them to
being only able to use it on one computer. I plan to supply any purcashed
copies by email.

Thanks, George Forbes

Nest Egg George wrote:
I'm going to publish a retirement nest egg calculator to the web and want to
know if I can prevent buyers from copying it, or if I can restrict them to
being only able to use it on one computer. I plan to supply any purcashed
copies by email.

Thanks, George Forbes

Here's one approach:
http://xcellcompiler.com/

Not sure it's worth the effort, though. Copy protection can be a real
hassle, both for the seller and the buyer. How much are you planning to
charge for this calculator?

Bill