> Is there any way to have Fiddler-like functionality in programs not made by us?
I'm not sure I understand what you're asking.
Q: "Can we modify someone else's program to integrate Fiddler-like functionality directly into it?"
A: Well, technically yes, but that seems like a lot of work and it may be illegal, etc.
Q: "Can we make a program that intercepts web requests from other
programs, just like Fiddler does?"
A: Yes, that's what FiddlerCore is for. http://www.telerik.com/fiddler/fiddlercore
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