This daemon is used to announce Linux Hosts to Windows 7+ computers for use in their File Manager network browsing, by using the Windows Services Discovery Protocol.

This protocol is a local network segment procotol, which is multicasted on udp/3072, and incoming on tcp/5357 on the 239.255.255.250/ff02::c multicast addresses. It DOES have security issues, but it is designed for use in a trusted environment inside a firewall.

Install only this if running Gnome desktop, or GVFS and not announcing well known File shares. See wsdd-server for working with Samba servers.