1. Install the required IntelliJ IDEA build.
2. Install JDK 5.0.
3. Install JetBrains MPS.
3a. On windows run installer.
3b. On other system extract mpsXXX.zip and set path to JDK in mps.sh located under %MPS_HOME%/bin directory.use a command java -jar ./lib/mps.jar
4. Start JetBrains MPS. JetBrains MPS will ask you to install JetBrains MPS plugin.
5. Start IntelliJ IDEA.