Download the installation program for
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Downloading the installation program for is different on Windows 10/11 than on Windows 7.

In Windows 7 click on this download link and save the file to somewhere on your computer where you can find it again

In Windows 10/11, click on this download link. Then a window opens; click on Save File to save the installation program to the Downloads folder on your PC. Open File Explorer and change to the Downloads folder.

Then (in both Windows 7 and 10/11) double-click on the installation program (rdc554_setup.exe) to install the program itself.

If any problem email support@planetary-aspects.com.