If your serial number looks like "RKS-01234567" then you definitely need a new serial number to use this build. Go to the Serial Number Lookup Request page and request a new serial number (no charge). We have recently changed serial number format.
The file you will be downloading will be named mfsetup.exe. It is the installation file for MightyFax. The file size is approximately 6.6 Megabytes. Once the file is downloaded and saved on your hard drive, you may run it at any time to install the MightyFax program on your computer.
64-bit: Note: The 64-bit version of Windows XP is not supported.
To upgrade or replace your registered copy, you need to download and install the latest Trial Version of the program from one of the download links above. The Trial Version installation program contains everything needed to update or replace your registered copy of the program. Please review and follow these steps:
1. If upgrading, first determine if there is a newer version. The current version is always shown on the MightyFax version history page. To determine the version of the program you are now using, click Help About on the program's main menu.
2. In general we do not recommend upgrading any of our products unless you have particular problems which have been addressed, or you need specific features which have been added. We like to follow the "If it works, don't fix it" rule.
3. Before any major action such as an upgrade, be sure to BACKUP the complete directory of the program you are upgrading. Mistakes happen, and only a complete backup can provide complete assurance that recovery can be done if needed.
4. Once you have downloaded the correct Trial Version from thedownload link above, continue with either step #5 or #6 below.
5. If you are updating the version currently on your computer, simply install the trial version over top of your existing registered version (same drive, directory, etc). It will automatically recognize the registration and will then become a fully registered version. Data and files will remain intact. DO NOT UNINSTALL YOUR OLD COPY.
6. If you are moving to a NEW COMPUTER or REINSTALLING after a hard drive crash (i.e. there is no existing copy of MightyFax on the computer), then simply install the trial version on the new computer. Then follow the directions previously sent in the email containing your "registered name and serial number", using the same registration information (serial number etc) as previously sent. If you have lost your original registration information (name and serial number) please use our Serial Number Lookup Request form.
7. Please note: We do not offer technical support for switching operating systems. The same applies to switching computers.