So for quite sometime I was ignoring an Explorer crash everytime I opened the Control Panel:Faulting application Explorer.exe, version 6.0.6002.18005, time stamp 0x49e01da5, faulting module ntdll.dll, version 6.0.6002.18005, time stamp 0x49e03821, exception code 0xc0000374, fault offset 0x000afaf8, process id 0xbe0, application start time 0x01c9ee300cc436fa.
My work-around was to drill into Control Panel via the Explore folder view. Turns out this was simple to debug. Just go to your Windows\system32 directory, sort by file type, and then double click on each .cpl file until you see the crash. Then rename that file foo.cpl.hide, or in my case: idtsg.cpl.hide. Since I still have the Intel IDT applet show up in my Control Panel, I suspect this was an old one that somehow became corrupted after an upgrade.