I will try to be very precise in the question. I have a C# program that uses fiddler, but I want to be able to modify the fiddler script using the program for example. When opening the program it would load the script I need into fiddler or edit it within fiddler automatically. I would like to know if there is a way to do this? Automatically load or edit the rules script in real time using an external program. I prefer to edit because unpacking the custom rules in the folder generally has difficulties as Windows blocks file modifications, etc. Thanks.