link into a file

[damv]

Hi every one.

I have a database in my company network.In a table i have a field wit
hypelink that opens a file. What i want to do is after someone makes
search to be able to use the hyperlink to open the file but still i d
not want the user to be able to have access to the file (eg. i do no
want him to be able to copy the file throw the windows explorer, or i
it is possible i don't want him to be able to see the file).

Any help will be welcome.
Thanks in advance