...If you don't have, download & install latest JDK
http://www.oracle.com/technetwork/java/javase/downloads/index.html
For example "Java Platform (JDK) 7u21"
2. Download Node Tool Suite (NTS) for your operating system (currently only Windows x64 & MacOS x64)
3. Extract NTS.zip into folder where you keep our tools, e.g. D:\Progs\
4. Open eclipse.exe from Eclipse folder, e.g. D:\Progs\Node-Tool-Suite-03-win64\eclipse\eclipse.exe
5. If you have error messages like
....\jre\....
That means you don't have JDK installed (JRE is not enough).
Reinstall JDK (see 1.) or use hint "how to configure Eclipse" https://github.com/Nodeclipse/eclipse-node-ide/blob/master/Hints.md#select-jvm-for-eclipse-instance
6. ...