HTBasic 10.1 Developer version for Windows XP and older operating systems. Download Only. Single User Perpetual license with one year of support and updates included. Optional add-ons include a printed Getting Started Guide, and a 4GB USB Drive with backup installation files plus storage for programs and data. Full documentation is available as a PDF to view or download for free on our website and in the HTBasic Help menu. Please allow 24 hours for License Keys to be emailed after placing an order.