HIARCS Chess Explorer is a premium desktop application available for both Windows and Mac. You can purchase it directly from the manufacturer:
To avoid errors, copy (Ctrl+C / Cmd+C) and paste (Ctrl+V / Cmd+V) the name and code exactly as they appear in your email.
: You can deactivate a license from the "About" dialog to free up an activation for a new computer. HIARCS Chess Software Troubleshooting
—along with the product download links. For those who purchase a physical DVD, the license details are included within the packaging. The Activation Process
The HIARCS Chess Explorer license code is a unique identifier sent via email upon purchase that is required to activate and unlock the software HIARCS Chess Forums License Delivery and Activation