At the present time, iScreensaver Designer 5.2 provides support for macOS 10.13 High Sierra, but there are some functional limitations.
Please read the 10.13 High Sierra Tech Note
as well as the Release Notes
Due to changes made by Apple, iScreensaver Designer version 5.2 does not currently support macOS 10.14 Mojave.
Please read our forum post
for the latest updates.
[Solved] File types when creating Windows screensavers on Mac
Are there certain video file types that will work best when creating screensavers for Windows users on a Mac? I have tried MP4 and MOV and both work great on Macs but fail on Windows. MP4 does not run smoothly and MOV brings up an error on some Windows machines asking for Quicktime updates. Do we need to use WMV files (which cannot be created on Macs)?
I am exporting video files from Premiere Pro and Sorenson Squeeze. We used to use a different screensaver software on Windows (with WMV videos), but I want to see if I need to go back to the old way or if iScreensaver will work for making .exe screeneavers.