>Anybody in here can give me some hints about copyrighting a software package?
>
>Anybody in here with experience in this area? Thank you in advance, any comments will be welcome.

It goes like this:

You say "Copyright Your Company(C) 2000"
and hope nobody redistributes it.

Or you can spend most of your profits on up front lawyer's fees and the rest of your profits should you choose to go forth with an infringement suite.