DS,
No. Not only is it not available, but there is the whole licensing issue to deal with. Not even the evaluation version of LabVIEW is available online because of the sheer size of it.
If you write to NI, or check their website, they can send you an evaluation copy.
If you are just looking to have something so that your customers can view LabVIEW code and run programs, then check out the LabVIEW Player.
Perhaps if you elaborated on your question, we might better be able to help.
