Use IP Sniffer and it can  work on all Windows versions using either the new raw socket implementation of Windows2000 (driverless) or WinPcap (needs to be installed) or a NDIS protocol (needs to be installed , no reboot).
The sniffer has basic features like filter, decode, replay, parse…

This program will show your external IP within 3 secs !!!

Here are some key features of “Show My IP”:

· Simple, Userfriendly.
· Fastest way to know your external IP.
· Right Click IP copy.

Requirements:

· Internet Connection of atleast 64kbps bandwidth.
· Microsoft.NET Framework 2.0 or above.
· 256MB RAM
· 2MB Free HDD Space.

With MySpeed you will see measures broadband download and upload connection speeds by timing actual data transfers between an Internet server and end-user computer.

MySpeed PC Lite is available as a downloadable utility to run from your PC or a Java applet that can be hosted on your web page to enable accurate speed test services for your customers and end-users. All MySpeed speed tests measure the bandwidth consistency of an Internet connection and report the connection quality. Consistency of download capacity is a critical measure for bandwidth-intensive applications such as VoIP and multimedia.

WallCooler will help remote working easier than ever: access remote files, applications or network resources from anywhere.

All Windows based applications are supported, no need to use special applications or synchronize files: MS Outlook, Remote printing, Windows File-Sharing, Windows Remote Desktop or Remote assistance, etc…
Easy to install, simple to use and very fast to run.

WallCooler is a secure and powerful VPN solution, and more:

* access office computers from anywhere
* access home computers from the office
* access remote LANs and local networks at the same time (no need to switch)
* no server or specific hardware required
* remote computers or servers are accessible by name (DNS/NetBIOS) or IP address

Looking for program that can display the screen of another computer (via internet or network) on your own screen? you can use this program, UltraVNC- The program allows you to use your mouse and keyboard to control the other PC remotely. It means that you can work on a remote computer, as if you were sitting in front of it, right from your current location.

If you provide computer support, you can easy access your customer´s computers from anywhere in the world and resolve helpdesk issues remotely ! Your customers don´t have to pre-install software or execute complex procedures to get remote helpdesk support. UltraVNC allows you to remotely control a computer over any TCP/IP connection. UltraVNC emulates the destination computer to make it look as if you were in front of it.