[CentOS] O.T. Commerializing Applications

Hello Members,

What are some good common tools for distributing commercial software
developed on Linux? At this point, I am interested in tools for Installation
and Copy Protection of Application Software. I have been using Wise or
Installshield for Windows. Also, I have not taken the plunge in Open Source
as I am not sure that model will work for me.

TIA,
David