I am a strange person - expect strange questions. I want to take the Win8 explorer.exe and make it run on Win7. Before anyone says "NOP U CANT DO THIS CUZ <reason>", of course you can - it's a machine, not a law of physics. It's just a matter of difficulty. Anyway.. When trying to run the file with no modification or accompanying files, it says it can't verify the digital signature. I tried changing the filename (thinking it might be a hardcoded protection mechanism), turned off the system attribute in case that was triggering the verification, and removed the signature block from the file. None of these made any difference whatsoever. I've set DDISABLE_INTEGRITY_CHECKS via BCDEDIT and I'm going to reboot and check that out, but I'm not sure that that applies to other things besides drivers to be quite honest - shot in the dark. (Edit: didn't matter) Ideas? PS - Mostly doing this for the file copy dialogs, so if it turns out too difficult to make the whole thing run due to API ties and other dependencies, perhaps I could rip those by themselves.. Barring all of that, this is just for fun really, so whatever.