You can obtain a legitimate product key through the following official channels:

: A license for Curtains typically costs $9.99.

If you have already purchased the software but cannot find your key, Stardock provides several self-service tools:

: For purchases made through FastSpring, you can use their account lookup tool to view your order history and keys. How to Activate Stardock Curtains

Once you have your key, follow these steps to activate the software: Activating Stardock Software - Documentation

: Visit the official Product Key Retrieval page and enter the email address used during purchase. Stardock will email you a complete list of your keys and download links.

: Retailers such as Fanatical and Steam are authorized to sell keys. Retrieving a Lost or New Product Key

: Curtains is included in the Object Desktop suite, which provides access to multiple Stardock customization apps for a single price.