What in my app could cause "repllog.exe" to not execute?

Question

I have a mobile app, that when installed on my mobile devices, is causing an alarming percentage (65%ish) of them to show this message :

Cannot execute repllog.exe

I have done some googling and I am still not even 100% sure what this message means.

If any one knows why my app could be causing this, I would love to hear why.

(A bit of info about my app seems in order. It is a Compact Framework 3.5 app. It does do some P/Invoking and has a SQL Server CE db and calls Web Services. I don't think it does anything too crazy or out of the ordinary. It runs exclusively on Symbol MC70 Devices.)