I have an IIS server with over 200 web sites. All the sites are the same web application but for different clients. Historically, when deploying updates we avoid updating the Web.Config files as some clients have "differences" to the standard version. This is a very old web application.
Does anyone know a way to compare all these files against a single "standard" version and compile a list of which ones are different and what the differences are without having to manually compare them one at a time?
If it helps, the differences are likely, but not limited to, additional elements. The values of elements being different would not be a problem. E.g. in the client file there was an extra AppSettings\Add