Probably incorrect. Most remote controls operate by sending keystrokes, so one I am looking at buying (the Kensington Si600 -
http://uk.kensington.com/html/11630.html sends page up for the right button, page down for the left and "b" for the bottom key (which will black out PPT). The only issue I potentially have with this remote presenter is that the laser pointer button sends F5 which usually means Refresh, and in PPT means start show, but in Zionworx means add new song to database!
I don't have a copy of ZW installed where I am at the moment, but if F5 operates as expected in ZW when doing presentations then I cannot purchase the above remote presenter - which is a shame, as two years ago when I was last looking at these (
http://www.zionworx.org.uk/forum_3/viewtopic.php?f=4&t=482 they were over 100 Pounds sterling and now Amazon are selling this one at 25 GBP and has loads of good reviews.
Other remote presenters will do different keystrokes. The way to find out how they operate with ZW is to open a Word document, type =rand(50) and press Enter (this will generate a few pages of random text), scroll to the middle of this document and start pressing buttons on the remote. F5 = Goto in Word. Other keys will either appear at the cursor or cause pages to move. If any of the keys simulated by the remote presenter conflict with ZW then either change remote or do not use ZW.