From Jan Kolarik and Ondrej Vaverka:
InstantStorm is a Windows freeware tool for creating Flash based screensavers with many advanced features. All you have to do is to choose an SWF file, set screensaver parameters, and compile an executable installer. All 32-bit and 64-bit versions of Microsoft Windows are fully supported, including Windows 95 and Windows 8.1. And the best of all--there are no nag screens or other annoying stuff. Unlike many other tools, InstantStorm allows you to fully customize your screensaver's about box, installer and uninstaller including all texts. Program highlights: - Extremely easy to use, the Wizard mode turns Flash SWF files into screensavers in seconds - Output screensaver files work with all Windows versions - Customizable screensaver installer and settings dialog - Support for live previewing and debugging - Separate Flash files for widescreen, 4:3, and 5:4 screen resolutions - Every single line of text in the screensaver installer, uninstaller, and settings dialog can be translated or edited - Customizable icon, readme file, and license agreement text in installer - Advanced developers' features - Flash Player 15 support - Support for additional external files (SWF, AS, TXT, XML).
What's new in this version:
Version 2.1.0 adds support for Windows 8, 8.1 and Flash Player 15; improves stability and includes many bug fixes.