1)   HTTProbe 1.0
HTTProbe is a powerful HTTP sniffer and analyser written in Java which allows you to read HTTP headers, log them and resend directly a HTTP request sent from your browser to a web server after having optionally modify the HTTP request's header.

 2)   HTTP Debugger Pro 3.2
Want to see all browser http requests and server http responses? Need to analyze http headers and http content data? Try HTTP Debugger!

 3)   SoftX HTTP Debugger 4.2
SoftX HTTP Debugger allows you to view and analyze all communications between a web browser, or any other Internet related program, and the web server. View and analyze HTTP header and HTTP content of any HTTP request or response.

 4)   CacheRight 3.0.3
CacheRight for Microsoft IIS allows developers to set up granular cache control policies for images and other site content without MMC access. Speed up page loads, reduce network chatter, and ease server strain from unnecessary validation requests.