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Configure Outlook Express

Verified with Windows 11 25H2 — updated on July 23, 2026

Windows 11 25H2

Supported on: Only Internet Explorer 6.0

Path in the GPO console

User Configuration\Administrative Templates\Windows Components\Internet Explorer

Description

Allows Administrators to enable and disable the ability for Outlook Express users to save or open attachments that can potentially contain a virus. If you check the block attachments setting, users will be unable to open or save attachments that could potentially contain a virus. Users will not be able to disable the blocking of attachments in options. If the block attachments setting is not checked, the user can specify to enable or disable the blocking of attachments in options.

Registry

HKCU Software\Policies\Microsoft\Internet Explorer\Control Panel

More options available

Options

Block attachments that could contain a virus
BlockExeAttachments boolean

Export Builder

BETA

Configure the state, scope and options, then generate .reg, PowerShell, Intune and SCCM outputs — or add the setting to a multi-setting collection.

These exports write the registry — this is not a managed GPO.

.reg file

Windows Registry Editor Version 5.00

; Exported from gporais.com
; Policy: Configure Outlook Express
; State: Enabled
; Supported on: Only Internet Explorer 6.0

[HKEY_CURRENT_USER\Software\Policies\Microsoft\Internet Explorer\Control Panel]
"BlockExeAttachments"=dword:00000000
More formats (PowerShell, Intune, SCCM)

PowerShell

# Exported from gporais.com
# Policy: Configure Outlook Express
# State: Enabled
# Supported on: Only Internet Explorer 6.0
# Warning: In SYSTEM context (the Intune default), HKCU targets the SYSTEM profile. Run this script using the logged-on credentials.

$path = 'HKCU:\Software\Policies\Microsoft\Internet Explorer\Control Panel'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'BlockExeAttachments' -Value 0 -Type DWord

Building a multi-setting collection? Add this setting and generate combined .reg / PowerShell / GPO scripts.

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