What Vasant says is true, any excel file can be hacked (a quick search on
the internet will prove that). But if you still want some minimal
protection, why not use a hardware identifier as part of you license number.
You could write some sort of algorithm based on the serial number of the
hard drive. This way if someone else tries to use the license number on a
different machine, it won't work. Basically, have a routine that reads this
number and creates a file that is emailed to you. You then reply with the
license that will work only on that hard drive. This eliminates that
constant connection and email issue. Just a thought...
I still think this seems like a lot of work for something that is so easy to
hack.
Paul D

"Marcello do Guzman" wrote in message
...
I need help adding COPY PROTECTING my Excel XP templates. I have been
unable to find anyting that prevents people form making copies of
CD's. I was also wondering if it is possible to DISABLE users from
using a template unless they can confirm their user identification
code over the internet. This is how I invision this working.

1) User received a USER ID and LICENSE NUMBER when product license is
originally issued

2) User installs the Excel product on his hard drive.

3) Must have Internet access and a regular email account (NOT, hotmail
or Yahoo)

4) When user boots up Excel template a dialog box opens asking for his
USER ID and LICENSE NUMBER. User must be logged into the Internet and
Email must be running. When user enters ID and LICENSE NUMBER an
authentication is sent to a my server. My server authenticates that
this is an authentic USER ID and LICENSE NUMBER and sends user an
email confirming authentication and allowing user to use the Excel
template.

Can anyone write someting like this?