a-Change Mac Address
Change Mac Address in seconds! Scan Mac Address within any range of IP address. Exports the scanning results from a Mac Address Lookup list. Spoofing the Mac Address of your network card to any new Mac Address. It makes ping mac address possible. Use this mac address finder to search proper mac... It scan any range of IP for the proper Mac Address. ... ) It support changing mac address searching speed. ... It checks your Mac Address inputting. ... your computer name, Mac Addresses and IP etc. ... It is not only a mac address scanner but also a spoofer.
http://amac.paqtool.com/images/amac.exe - 689Kb - Download - Screenshot

IP Helper
This IP Helper software shows you both your internal and external IP addresses, can notify you by email when they change, performs DNS and Whois lookups, and much more! Many Internet Service Providers (ISPs) use non-static IP Addresses. Because of this, your IP Address can change frequently. ... Displays your Internal Network IP Address for users that are part of a network, or behind a router Displays your External IP Address, which is the IP Address that the "outside world" sees IP Address Overlay displays your IP Addresses in the top left corner of the screen, on top of all other windows!
http://www.rebrandsoftware.com/demodownload.asp?id=9 - 3Mb - Download - Screenshot

Dynamic IP Update Service
Dynamic IP Update Service is simply a way of attaching a static hostname to a dynamic IP address. On the Internet, there are a limited number of IP addresses. When you connect to your ISP, you are assigned a temporary IP address that other computers use to find you while you are connected. ... This is not easy if your IP address is dynamic, like most people's are, because you will have to keep telling everyone what your current IP address is (comparable to changing your phone number every day). ... Now, you just give out your static hostname instead of your IP address, and only tell the...
http://www.fleisoft.com/Download.aspx?product=DynIPUpdateSetup.zip - 358Kb - Download - Screenshot

MyWebServer Address Monitor
The MyWebServer Address Monitor program monitors your dynamic IP address as often as every five minutes, and updates your MyWebServer 'VDNS Redirector Page' every time your IP address is changed by your ISP. This reduces the amount of time your server is 'Un Available' after an address change. ... The Address Monitor is not necessary if you do not use the MyWebServer VDNS Redirector or if you use a Dynamic Addressing Service like. ... ICQ, dyndns or DNS2Go etc.
http://www.mywebserver.org/us/downloads/MWSAddressMonitor.exe - 45b - Download

Contacts Verifier
Contacts Verifier is the first add-in for Microsoft Outlook 2000, 2002/XP and 2003; designed to monitor the validity of e-mail addresses in your contacts. It is able to check your address-book throughout in a matter of minutes notifying you of contacts that contain e-mail addresses which are no... When checking an address, CV imitates the sending of the message to the address being checked, and after receiving the answer from the server (to which the address belongs) as to whether the address exists or not, it terminates message sending and ends the session correctly.
http://www.mapilab.com - 4Kb - Download - Screenshot

SMAC
SMAC is a powerful, yet easy to use MAC Address Changer for Windows 2000, XP, and 2003 systems, regardless of whether the manufacturers allow this option or not. The new MAC addresses you change will sustain from reboots. Features: Change MAC Address in 3 clicks || validate MAC Address ||...
http://www.klcconsulting.net/smac/default.htm#download - 5Mb - Download - Screenshot

DIP Update
This free Dynamic IP Direct script automates the process of updating an ever-changing IP address. Dial-up; even Home DSL and Cable connections can change your IP address without warning, unless you pay big-bucks for a static IP. This script reports your IP to any subdomain site like CJB. ... This script will sequentially report to the domains when your IP address changes, so no matter how your web visitors find your site, you can rest assured they'll get there without any problems. ... net, and saves your real IP to a text file on the server.
http://www.intelliscript.net/cgi-bin/FileCABINET.pl?download=9&.zip - 5Kb - Download - Screenshot

Hide My IP
Hide My IP allows you to conceal your identity on the Internet. Surf anonymously, prevent hackers from acquiring your IP address, send anonymous email, and un-ban yourself from forums, blogs, message boards by changing your IP address anytime you wish. ... Hiding your IP address is as simple as clicking the "Hide IP" button, which automatically configures Internet Explorer and FireFox to use a proxy server from our proxy list. ... You can even change your IP address automatically every few minutes or automatically use an anonymous proxy when you start your computer.
http://www.hide-my-ip.com/hidemyip.exe - 585Kb - Download - Screenshot

IP Mailer
If your ISP gives you a temorary IP address each time you log on, you can email your IP address automatically to your friends and office/home so that you can find your computer for remote access regardless of the constantly changing IP address. If you use your computer remotely or need to have... Simply configure the SMTP server address, your email address and the recipients address and you are ready to automatically keep up to date with your IP. ... IP Mailer can also optionally send you a daily email with the IP address.
http://download.winwap.org/ipmailer/ipmailer.exe - 2Mb - Download - Screenshot

IP Detective Suite 2K
IP Detective Suite is an IP monitoring program that reports your changing IP address to your ftp site, e-mails it to you and displays it on your desktop. This makes a perfect tool for remote connection with programs such as pcAnywhere. IP Detective Suite inlcudes IP Detective Original IP... Publisher stores changind ip address to any computer you wish and publishes them in a list using IP Publisher. ... Monitor an unlimited number of ip addresses. ... Access a published list from any computer.
http://www.ipdetective.ca/Downloads/Trial/IPD%20Trial%202KC.zip - 5Mb - Download - Screenshot