In my article on how the Local intranet zone in IE8 worked, I decided to check the DEFAULT differences between the zones in IE8. I skipped Restriced sites since it’s not something I use in my lab and I only documented the differences.

Note that I documented the default IE8 levels.

Setting Internet = Medium-high Local intranet = Medium-low Trusted sites = Medium
Allow Scriptlets Disable Enable Disable
Automatic prompting for ActiveX controls Disable Enable Disable
Only allowe approved domains to use ActiveX without prompt Enable Disable Disable
Automatic prompting for file downloads Disable Enable Enable
Access data sources across domains
Disable Prompt Disable
Allow scripting of Microsoft web browser control
Disable Enable Disable
Allow script-initiated windows without size or position constrains
Disable Enable Disable
Allow websites to open windows without address or status bars Disable Enable Enable
Don’t prompt for client certificate selection when no certificates or only one certificate exists
Disable Enable Disable
Include local directory path when uploading files to a server Disable Enable Enable
Launching applications and unsafe files
Prompt Enable Prompt
Navigate windows and frames across different domains Disable Enable Disable
Use Pop-up Blocker Enable Disable Enable
Use SmartScreen Filter Enable Disable Enable
Allow Programmatic clipboard access Prompt Enable Prompt
Allow status bar updates via script Disable Enable Enable
Allow websites to prompt for information using scripted windows Disable Enable Enable
Enable XSS filter Enable Disable Enable
User Authentication – Logon Automatic logon only in Intranet zone Automatic logon only in Intranet zone Automatic logon only in Intranet zone