Fascinating; so that makes me wonder if the bluescreen code flow also tries to look up the registry value, or if the boot process somehow reads that registry va

Fascinating; so that makes me wonder if the bluescreen code flow also tries to look up the registry value, or if the boot process somehow reads that registry value so early in the boot that by the time a bluescreen happens, the value is already available to it ... in a specific memory location or something? It's my idea of hell having an error handler that tries to do fancy stuff and then the error handler dies and swallows the original error condition Also, if you happen to still have the link to that regkey description, I bet this audience would benefit from your research