i am using fiddler for intercepting, modifying and manual replay of requests.
why is fiddler (windows) so bad in handling attachments? if i intercept a request to modify a parameter and a attachment even with a short size is also part of the body, fiddler stops to respond for minutes rendering this few bytes in the RAW view. with burp that takes no time even if bigger attachments are included.
Are you using Fiddler Everywhere or Fiddler Classic? This forum is for Fiddler Everywhere users, for Fiddler Classic you can use this one.