Two versions of GDDCALC have been created, one for Microsoft Windows and one for Macintosh. Both are available free of charge. The software is uncopyrighted and has been placed in the public domain. This basically means that you can do what you want with the source code and the binaries.
This version of the program was written in the C language and uses the Win32 API to access Windows services. That means it should run on any version of Windows that retains backward compatibility with Windows NT. In addition, this version of GDDCALC uses the Arial Bold font. Please make sure this font is installed on your computer. The code was written and compiled in the Dev-C++ development environment.
Click here to download the application or here to download the source code
Both downloads are zip archives. You should unzip the application archive to a directory named gddcalc. No further installation is needed, since GDDCALC does not utilize the Windows registry (which is sometimes called Bill Gates' worst mistake). Use Explorer to create a shortcut to gddcalc.exe and drag the shortcut to your desktop. You can then run GDDCALC by clicking on the shortcut.
This version of GDDCALC is a REALbasic application. It has been tested on OSX 10.4 using the Intel processor, but should also run on pre-Intel versions of OSX.
Click here to download the application or here to access source code.
The application is contained in a gzipped tar file. Simply extract it in a directory of your choice and run gddcalc.app from there.
And now the fine print:
GDDCALC is offered without warranty, express or implied, nor do we assume any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, method, or software on this website. The software offered here has been tested on several platforms but is not guaranteed to work on yours. It is provided here as a convenience.
Another point of interest
The Windows version of GDDCALC was written and compiled in the Dev-C++ integrated development environment. Dev-C++ (which is a project of Bloodshed Software) is a well-designed and powerful open source tool distributed under the GPL (General Public License).
We chose Dev-C++ (rather than Visual C++, for example) partly because of our aversion to Microsoft products. Microsoft is a convicted monopolist with a long history of ethically questionable business practices. It produces mediocre and insecure operating sustems. The most recent two versions of the Microsoft desktop OS, Windows XP and Vista, contain spyware and DRM, and we have chosen not to install XP or Vista on our own machines. Thus GDDCALC has been tested with Windows 2000 and some earlier versions of Windows, but not with XP or Vista. However, although Vista includes a number of new APIs it still supports Win32, and we expect that GDDCALC will run correctly under both XP and Vista.
We hope you will let us know how well or poorly GDDCALC works with your operating system. You can email us at this address. As with any open source project, we appreciate and encourage bug reports.