ISU is an easy-to-use recorder that builds a presentation that can be used to show software features. ISU includes a Editor that enables you to add HTML pages, nice notes, draw on the pictures, and add voice messages. ISU also includes tool that helps you send the presentations to your friends or build a FAQ (Frequenly Asked Questions) tree. Based on VapiSoft's patent, ISU files are very small in size. When you purchase a license for the ISU-Editor, you automatically become a distributor and you can profit from your presentations.