The newest update for DW Spectrum IPVMS has been released, version 5.1. Learn about its new features here! Learn all about the software here. Powerful, yet easy-to-use, DW Spectrum IPVMS server and client software is free to download and use. Updates are also free. The only cost is to purchase a lifetime recording license per camera, a one-time fee. Download the software here. DW allows you to easily try demos of our software, recorders, servers and cameras online here.