Golden Software has two license numbering systems: product key and serial number. 

Both product keys and serial numbers as both are used to activate or unlock Golden Software products. Whether you have a product key or serial number will depend on the product you have and when it was purchased. 

• Product keys are in the form XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX
• Serial numbers are in the form XX-XXXXXX-XXXX

If the value you're entering is longer than 15 characters, you have a product key. To activate the program with a product key, you need to have a product key version installed. The dialog where you enter the product key looks like this: 

If you have the wrong version installed, you can easily remedy this by downloading the latest installer from My Account: Download my software online

If the value you're entering is short (fewer than 15 characters), you have a serial number. To activate the program with a serial number, you need to have the serial number version installed. The dialog where you enter the serial number looks like this:

Surfer and Grapher licenses purchased prior to December 2016 and Strater licenses purchased prior to March 2018 are most likely serial numbers. All Voxler, Didger, and MapViewer licenses are also serial numbers.

Updated April 2022