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Display error message on proxy script download failure

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

Windows 11 25H2

Supported on: At least Internet Explorer 5.0

Path in the GPO console

User Configuration\Administrative Templates\Windows Components\Internet Explorer

Description

Specifies that error messages will be displayed to users if problems occur with proxy scripts. If you enable this policy, error messages will be displayed when the browser does not download or run a script to set proxy settings. If you disable this policy or do not configure it, error messages will not be displayed when problems occur with proxy scripts.

Registry

HKCU Software\Policies\Microsoft\Windows\CurrentVersion\Internet Settings

Value name: DisplayScriptDownloadFailureUI

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: Display error message on proxy script download failure
; State: Enabled
; Supported on: At least Internet Explorer 5.0

[HKEY_CURRENT_USER\Software\Policies\Microsoft\Windows\CurrentVersion\Internet Settings]
"DisplayScriptDownloadFailureUI"=dword:00000001
More formats (PowerShell, Intune, SCCM)

PowerShell

# Exported from gporais.com
# Policy: Display error message on proxy script download failure
# State: Enabled
# Supported on: At least Internet Explorer 5.0
# 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\Windows\CurrentVersion\Internet Settings'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'DisplayScriptDownloadFailureUI' -Value 1 -Type DWord

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

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Embed this policy on your site

What to embed
Theme

Adds one script line: the theme follows your site’s appearance and the height fits the content. If your site blocks scripts, the embed follows the visitor’s system theme.

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