If you don't want to use Zeno Tools's broadcast studio, the broadcast link and server credentials that come with it allow you to broadcast using the equipment of your choice. The information will allow you to use any Icecast-compatible DJing software or plug-in to connect to Zeno Tools.
Here is a list of third party applications that are known to work with Icecast:
Liquidsoap is a powerful and flexible language for describing your streams. It is an open source project.
For documentation and support, you can check this out.
BUTT is a simple Icecast v1/SHOUTCast v1 compatible tool that takes one audio stream of your soundcard and relays it directly to the server. When properly set up all you have to do is run BUTT and then just play the music in an audio player or speak into your microphone without needing any extra interaction with the streaming software. You can use this guide to set up BUTT and connect it with Zeno Tools.
Mixxx is the only free cross-platform vinyl control software and has the most advanced MIDI/HID controller support.
You can download it for free at the official site. This guide will help you through the set up process with Zeno Tools.
Traktor is a DJ software packade developed by Native Instruments. It is available for Linux/Unix and Mac OS X.
You can see how to set up Traktor here.
Music Player Daemon (MPD) is a flexible, powerful, server-side application for playing music. Through plug-ins and libraries it can play a variety of sound files while being controlled by its network protocol.
6. SAM Broadcaster
SAM Broadcaster is a professional DJ system that allows you to stream audio over the internet to listeners across the world. A tutorial is available for versions PRO and STUDIO here.
7. Virtual DJ
Virtual DJ is a range of audio/video mixing software for use by mobile and club DJs.
The versions that support broadcasting are: "VirtualDJ Broadcaster", "VirtualDJ Pro Basic" and "VirtualDJ Pro Full."
This is an affordable, reliable automation software solution to automating your broadcasting needs.
Download the source client for broadcasting in MP3 format to an Icecast2 server. IceS reads audio data from an input and sends the audio data to one or more files or Icecast servers. Before it’s actually sent out, some processing may be performed, typically resampling and/or downmixing to produce streams suited to various bandwidth requirements. Available only for Linux/ Unix.
BroadcastMySelf is a free, android client for Icecast/Shoutcast Server.
For Linux/Unix only there are some more software available like the following: