Create Passwords in a Project

Hi Guys:

I don't Know if,it is possible in VB,but it's normal in a lot of programs,installed trought CD,a system ,that you can installed in annother computer,unless you deinstalled from the original computer and turn to installed in annother computer!

If we put a system of passwords and username,anyone can transport the CD and installed in annother computer,if off course have the password.It's simple and we don't have any protect in our project!

Anyone have some system different or Know the way to do the first question?

Thanks

Please clarify a little better..

you want to ensure that you app is only installed on 1 pc at a time?
so if the user wants to put it on another PC then they need to uninstall from the first PC?

yes...that's it!

Or if you have 2 licenses to use in 2 computers you can installed in both !

Thanks

You could give them a serialnumber.
The installer would contact the server and ask if the serial is taken, if not it registers it and installs the program.
The deinstaller contacts the server and unregisters the serial.