Not so. I've had at least one perfectly legitimate reason for fiddling with the PE header to change the bitness of an existing exe (damned if I can remember what it was mind - probably forcing 32 bit to get round an interop issue ahem)
From: Greg Keogh Sent: Friday, January 17, 2014 1:03 AM To: ozDotNet Nitpicking, but bear in mind that there's no such thing as an Any CPU ‘process’ of course. Indeed, your nit is a good editor, but even he'd be crazy to fiddle with CorFlags. Greg K