This program is a rather small application which can be used to spy on or trace TCP packets between a client IP and a server IP. It is optimized for analyzing bandwidth usage and .NET applications. It is an all-in-one tool which can monitor services, redirect servers, profile web sites and spy on web services. The pro edition is an absolutely free download with no strings attached.
TCP Spy .NET is light and easy to deploy, requiring the .Net Framework 2.0 or above.
From Devolutions inc:TCP Spy .NET is a small application used to trace TCP packets between a client and a server. Optimized for .NET Web Services or Web Site TCP Spy .NET will help you find any bottleneck and it will help you in analyzing your bandwidth usage.TCP Spy .NET Standard Edition 4.1
is licensed as Freeware
for the Windows operating system / platform without restrictions. TCP Spy .NET Standard Edition is available to all software users as a free download (Freeware).
TCP Spy .NET Standard Edition Virus and Malware Tests:
For security reasons, you should also check out the TCP Spy .NET Standard Edition virus and malware test
that has been uploaded; additional TCP Spy .NET Standard Edition screenshots may be available, too.