Mostly as a reminder for myself, here are the Internet Zone IDs (taken from HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones on a Windows 8.1 machine, there is also a HKLM entry) as used in the Zone.Identifier ADS:
| Zone ID | Displayname | Description |
|---|---|---|
| 0 | Computer | Your computer |
| 1 | Local intranet | This zone contains all Web sites that are on your organization’s intranet. |
| 2 | Trusted sites | This zone contains Web sites that you trust not to damage your computer or data. |
| 3 | Internet | This zone contains all Web sites you haven’t placed in other zones |
| 4 | Restricted sites | This zone contains Web sites that could potentially damage your computer or data. |
Article Link: https://blog.didierstevens.com/2017/05/09/quickpost-internet-zone-ids/