public NUnit([TargetRoot] IFileSystemDirectory targetDir, IParameters parameters)
: base("NUnit", Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.ProgramFiles), "NUnit 2.6.4"),
Path.Combine("NUnit-2.6.4", "bin", "nunit-console.exe"), new Uri("http://github.com/nunit/nunitv2/releases/download/2.6.4/NUnit-2.6.4.zip"), true, parameters)
{
this.targetDir = targetDir;
}