The box is in msgina.dll. It is dialog #2500 in msgina.dll.
The text within it is determined by the following registry key:
CODE
HKLM/Software/Microsoft/WindowsNT/CurrentVersion/Winlogon
LegalNoticeText
LegalNoticeCaption
LegalNoticeText
LegalNoticeCaption
No idea how to do this. Seems some coding beyond my powers would be needed. If anyone can figure this out and tell me what to do, or even if you're really nice make a customized GINA, I would really appreciate it. I know a lot of people who would really like to have this, rather than just the silly OK button.
I'm looking for something like this - and it's a modified screenshot, not a real one. I've never actually seen this done:
Click to view attachment