Yes, this has been explained in the past, although a bit vaguely, or perhaps I forgot about it. But the question still is why other similar tools, which offer just as strong protection, don't need to do this. Like I said, if HMPA worked differently, then I could have chosen to apply exploit mitigations to all vulnerable apps besides "sandboxed" browsers, for example. But now I had to uninstall. But I didn't test if removing the "OpenPipePath=\Device\NamedPipe\hmpalert" line would have also solved the problem.