Fiddler 2 : Web Debugger | Download

System Requirements
Windows 2K / XP / 2K3 / Vista / 2K8 / Win7
Microsoft .NET Framework v2.0 or later
8 megabytes disk space / 800mhz processor (Screams at 2.4ghz)
256 megabytes RAM (1GB+ highly recommended)
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Original Post : http://spazitr0n.blogspot.com/2010/12/fiddler-2-web-debugger.html