I don't. The main component that I get emails about is Internet Explorer, and so far, all problems have been introduced by IE being removed by nLite. I figure that if there are ways to check if nLite has been used, then I could possibly figure out from there whether required bits are missing. That said, I've not mucked around with nLite to any great degree, so I don't really know whether I can use the files it generates to figure out whether needed components have been removed. As I said, I shall pursue this a bit closer to completion, because if I can gather as much information about the installed environment, the easier it'll be for me.