The only way that comes to mind to me is using a screen capture
program, have it running the same time as the slideshow.
From the Pricelesswarehome:
MWSnap
(Donationware)
Windows OS: Windows (32-bit)
Languages: English, language pack for many other languages
Description: MWSnap is a small yet powerful Windows program for
snapping (capturing) images from selected parts of the screen. Current
version is capable of capturing the whole desktop, a highlighted
window, an active menu, a control, or a fixed or free rectangular part
of the screen. MWSnap handles 5 most popular graphics formats and
contains several graphical tools: a zoom, a ruler, a color picker and a
window spy. It can be also used as a fast picture viewer or converter.
MWSnap does not require installation and does not need any special
dlls, drivers or system files which can mess up your system.
Company: -- Author: Mirek Wójtowicz
Home Page:
http://www.mirekw.com/winfreeware/mwsnap.html
download v 3.00.0.74 (2002-07-06) (MWSnap300.exe) (643 KB)
http://www.mirekw.com/winfreeware/files/MWSnap300.exe
download v 3.00.0.74 (2002-07-06) (MWSnap300.zip) (601kb)
http://www.mirekw.com/winfreeware/files/MWSnap300.zip
-Art-