iScreensaver Designer is a cross-platform screensaver editing toolkit that builds screensavers for both Mac OS X and Windows XP thru 7, using Images, QuickTime files, MPEG and H.264 Movies, as well as Adobe Flash (SWF) files. It includes a powerful OpenGL animation engine, and a built-in single-file installer. A free trial version with no time limit is available for download.
NEW
Version 4.4.4:
iScreensaver Designer 4.4.4 is a minor bug-fixing update. We encourage authors to update their software and their built screensavers if they are encountering any of the issues described below:
Editor:
Fixes several bugs in the styled text editor when editing more than one item at a time. Added code to protect against a crash with third party haxies such as RightZoom. Fixes so the Help menu no longer opens the browser window twice.
Screensavers:
The screensaver and screensaver options panel will now show up in the Dock and App Switcher using the customized name set by the author.
Windows: Better error trapping for registry permission issues.