ArcSoft no longer sells or supports ShowBiz. The company was acquired or dissolved its consumer video division years ago. However, if you legally own a license:
Do you need help finding or manuals for a specific capture card that originally came with ShowBiz 3.5? Arcsoft Showbiz 3.5 License Key - arcsoft showbiz 3.5 license key
in a Command Prompt (Admin) window, though this is primarily for Windows OS keys. www.amazon.com Technical Status & Alternatives Operating System Compatibility: ArcSoft no longer sells or supports ShowBiz
Some hardware brands (e.g., DIGITNOW!) provide the software installer for their specific devices on their support pages. DIGITNOW! Download Center arcsoft showbiz 3.5 license key