title: Parallel task execution on NAnt
body: <p>I am using NAnt to build 5 different installer packages for the same software, in different configurations. These tasks can be parallelized as they are not dependent on each other. Installshield which is building these configuration seems inefficient with regards to multi core CPU usage (the usage capped at 25% CPU on a 4 core machine). I have been looking for an easy way to parallize tasks and only found <a href="http://jayflowers.com/WordPress/?p=101" rel="nofollow">this</a>, which is pretty much what I need. However the source code for this project is not available and it's referencing some types which are not available in the latest version of NAnt 0.91 which we require for .NET 4.0 support. </p>
  
  <p>Any ideas on how to solve this, short of writing my own extension for NAnt?</p>