Free tcp spy .net software for windows

This software is a small tool used to trace TCP packets between a client and a server TCP Spy .Net is a program used to trace TCP packets between a client and a server.
Optimized for.Net Web Services, TCP Spy .Net will help you find any bottleneck and it will help you in analyzing your bandwidth usage. With TCP Spy .Net, you can inspect data in different views, track server calls or just redirect the host.
Main features:
General
- Light (one file only)
- Small (less than 1 meg)
- Rich and easy user interface
- Auto update
Monitoring
- Monitor connection IP address
- Monitor connection destination
- Monitor opened connection
- Log connections and requests to file
- Suspend monitoring with no service interruption
- Flag connection / request for an easier tracking
- Insert grid marker for an easier tracking
- View and clear log file
Profiling
- Profile Web Service: calls, durations, bytes in, bytes out
- Profile Url: content, size
- Get stats about Web Service (calls, duration, bytes in, bytes out)
- Get stats about Url (calls, duration, bytes in, bytes out)
- Pause profiling without interrupting the communication
- Get the size and the duration of the each request
- View request details for each connections
Redirection server
- Configure port redirection
- Configure ip redirection
Network spy
- Inspect bytes in data
- Inspect bytes out data
- Inspect header and raw data
- View HTTP header
System requirements:
- .Net Framework 2.0

ITC Color Spy captures a pixel color of the screen. Shows the color in RGB, CMY, CMYK, etc.
Uses a zoom tiny window. Very useful.

Packet Spy is a free and useful packet sniffer utility.
Packet Spy is a tool designed with the purpose of monitoring incoming and outgoing packets from a given network. It is most useful in situations where you need to verify the security of a packet or monitor the responses invoked by the network.
It features an onscreen view of sent/received packets and can also log results to a file for further examination.
Main features:
- Displays incoming and outgoing packets from a given source
- Create filters to monitor for specific traffic
- Output reports to log files for further examination
- Displays IP/TCP/UDP packet header information

IP Port Spy is a tool that will listen on a TCP or UDP port, and print the frames received in the main window.
No frames are sent back in response to the frames received, although TCP connects are sent when a connect request is sent on a TCP port.
This software was developed with the IP developer in mind, as a means to test and debug network applications, or just to provide information about particular frames. The frames shown below in the main window are SNMP frames, with IP Port Spy listening on UDP port 161.