in src/qa/Core/MSITools.cs [24:35]
private Process Run(List<String> args)
{
Process process = new Process();
process.StartInfo.FileName = "msiexec";
process.StartInfo.Arguments = String.Join(" ", args);
if (RunElevated)
process.StartInfo.Verb = "runas";
process.Start();
return process;
}