I am not sure what you mean by the screen being "locked". Do you mean that a dialog box is popping up? If so, what dialog box is it. If you contact me offlist, I will be glad to have a web meeting with you so I can see what is happening. -Rick rick at frameexpert dot com
Being locked means, that the screensavers comes up, or a user press the keys Win + L. There is no dialog box.
Possibly seemingly unrelated question: why are you handling 100s of XML files using FrameMaker and FrameScript. Surely there must be an easier way to create the book you are looking for. I know this does not answer your question specifically, but there are always other methods to do what you want to do. If you are intereseted in using XSLT to process those XML files into a smaller number of files that can be handled by FM without any further scripting, send an e-mail to jang at jang dot nl.
The easiest solution is to turn off the screensaver and tell your users not to log off. The FrameMaker activity from the script should prevent the screensaver from coming on by itself. I am not sure that there is any other way around this. -Rick