TCPView V2.53

TCPView gives a detailed listing of all TCP and UDP endpoints on your system, including the local and remote addresses and state of TCP connections. On Windows NT, 2000 and XP TCPView also reports the name of the process that owns the endpoint. TCPView provides a more informative and conveniently presented subset of the Netstat program that ships with Windows.

Writes settings to: Windows registry

How to extract: Download the ZIP file and extract to any folder of your choice. Launch Tcpview.exe.

Stealth: No

License: Freeware

System Requirements: Win95 / Win98 / WinME / WinNT / Win2K / WinXP / Vista

eToolz V3.2.2

eToolz includes some of the most important networking tools like NS-Lookup, Ping, TraceRoute and Whois. It allows also to check E-mail addresses (MX-Server) and to search/convert domain names showing DNS entries (A, PTR, NS, SOA). eToolz supports also international domain names.

Note: the application starts in German, but you can immediately focus the "Sprache / Language" option in the window.

Download Here | 3 MB |

Writes settings to: Application folder

How to extract: Download the RAR package and extract to a folder of your choice. Launch eToolz.exe

Stealth: Yes

License: Freeware

System Requirements: Win2K / WinXP

CurrPorts V1.32

CurrPorts displays the list of all currently opened TCP/IP and UDP ports on your local computer. For each port in the list, information about the process that opened the port is also displayed, including the process name, full path of the process, version information of the process (product name, file description, and so on), the time that the process was created, and the user that created it.

In addition, CurrPorts allows you to close unwanted TCP connections, kill the process that opened the ports, and save the TCP/UDP ports information to HTML file , XML file, or to tab-delimited text file.

CurrPorts also automatically mark with pink color suspicious TCP/UDP ports owned by unidentified applications (Applications without version information and icons).

Download Here

Writes settings to: Application folder

How to extract: Download the full version ZIP package and extract to any folder of your choice. Launch the program by double-clicking on cports.exe.

Stealth: Yes

License: Freeware

System Requirements: Win95 / Win98 / WinME / WinNT / Win2K / WinXP / Vista

SmartSniff V1.36

SmartSniff allows you to capture TCP/IP packets that pass through your network adapter, and view the captured data as sequence of conversations between clients and servers. You can view the TCP/IP conversations in ASCII mode (for text-based protocols, like HTTP, SMTP, POP3 and FTP.) or as hex dump. (for non text-based protocols, like DNS).

On Win2K/XP, SmartSniff is able to capture TCP/IP packets using raw sockets. This method has some limitations and problems, but it does not require the installation of a separate capture driver.

A better way to capture TCP/IP packets is to install the open-source WinPcap capture driver. This works on Windows 98/ME/NT/2000/XP/2003, and functions better than the "raw sockets" method.

Download Now | 85KB

Writes settings to: Since release 1.35: application folder. Previous releases: Windows registry, but given the nature of the application, I think it can be accepted as portable.

How to extract: Download the ZIP package and extract to a folder of your choice. Launch the application by double-clicking on smsniff.exe.

License: Freeware

System Requirements: Win98 / WinME / WinNT / Win2K / WinXP