使用带参数的自定义操作时，MSI安装程序无法找到InstallState

First off, yes, I know that the VS Setup Projects are evil. It's what I have to work with. I've also seen several related questions, but they either go unanswered or they don't match my situation close enough for the answer to work (or they harp on about the evils of VS Setup Projects and the marvels of WiX).First off, yes, I know that the VS Setup Projec