The owner can do with the software whatever s/he pleases.  The
software can be licensed to any number of parties, with as many
different terms.  The terms may even be conflicting:  the software
can be licensed to one person with requirement to redistribute
sources, while another person might not be required to do so.

The only time conflicts are not permitted is when the owner
provides an _exclusive_ license to someone;  in that situation,
the owner is not permitted to provide the software to anyone else
under any terms.

On Mon, 21 Feb 2000, Thomas Michael Wanka wrote:

> Hi,
> 
> as far as I know, the owner of a given piece of software still has all 
> rights even if he publishes his software under a given license. What 
> I am after is, if a given piece of code is published under the BSD 
> licence the publisher should still have the right to publish the same 
> piece of code under e.g. the GPL and vice versa. (At least as long 
> as one licence does not exclude the right to publish under other 
> licences)
> 
> Can someone with more experience on that matter confirm this 
> please?
> 
> mike 
> 

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