WMP11 Disable Sync

I'm having an issue whenever WMP is running and I connect a memory stick, WMP
insists on syncing the device. And changing to the "Sync" tab, which is very
irritating.

I followed the advice listed here:-
http://windowshelp.microsoft.com/Win...08a601033.mspx

But the problem is that the option "Start sync when device connects" is
greyed out and unchecked. This happens for any memory stick. Is there a
solution to totally disable the sync? Like modifying the "WMPInfo.xml"?

Thank you.