XML Exception: Invalid Character(s)

Question

I am working on a small project that is receiving XML data in string form from a long running application. I am trying to load this string data into an XDocument

Answer 1

Garbage In, Garbage Out. If the remote application is sending you garbage, then that's all you'll get. If they think they're sending XML, then they need to be fixed. In this case, you're not doing them any favors by working around their bug.

You should also make sure of what they think they're sending. What did the %1C mean to them? What did they want it to be?