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 other people access some server functionality on your PC you can let them know what your IP address is automatically when it changes....
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downloading guide 
Support for IP Mailer is available from the
publisher/developer site 
This download (IP Mailer) is shareware. "Shareware is a marketing method for computer software. Shareware software is typically obtained free of charge, either by downloading from the Internet or on magazine cover-disks. A user tries out the program, and thus shareware has also been known as "try before you buy". A shareware program is accompanied by a request for payment, and the software's distribution license often requires such a payment." More info at
Wikipedia.
Soft32 (ITNT) cannot be held liable for issues that arise from the download or use of these software products. We encourage you to determine whether this software or your intended use is legal. Even if we try to check the program files for viruses, we cannot guarantee 100% that they are clean. For your own protection always check downloaded files for viruses, spyware and malware.