Remote Presenting with Power Point

Here is the question:
I have employees on a stage discussing a topic while holding a remote to advance slides in power point. The thing we are using is Remote Presenter. The issue is that while its in slide show mode if I click on something else on the computer they can now no longer advance slides until I click back on the power point window. See how that could get troublesome when I am trying to get a video ready or something to make an event go well and they are going through slides over and over. So I am wondering if anyone out there has a better solution am sure many of you have folks that use power point and a remote control for slide advancing but I would sure like to know of a different way am sure that folks in churchs and big events have ways around this am just not sure how?

Thanks in advance,
Derron