If your serial number 164 is legitimate, treat it like gold. Back up the installer and the key to a USB drive, because Sony doesn't exist anymore. If you are just trying to get the software to work, follow the compatibility steps above.
Sony's licensing algorithm in version 10 generated codes where the first three digits often denoted the product family (e.g., 164 for Sound Forge Pro, 165 for CD Architect). The "164" is a signature of a legal, retail boxed copy. 10 0 serial number 164 sony sound forge pro install
If you are struggling to activate the legacy Sony version, it is highly recommended to upgrade to the modern version. Sound Forge Pro 16/17 Go to product viewer dialog for this item. If your serial number 164 is legitimate, treat it like gold