URL to a proxy .pac file

ComputerIntune-readyPol_ProxyPacUrl

Supported on Microsoft Edge Update 1.3.21.81 and later

155.0.4283.62

What it does

Allows you to specify a URL for a proxy auto-config (PAC) file. If you enable this policy, you can specify a URL for a PAC file to automate how Microsoft Edge Update selects the appropriate proxy server for fetching a particular website. This policy is applied only if you have specified manual proxy settings in the 'Choose how to specify a proxy server settings' policy. Don't configure this policy if you have selected a proxy setting other than manual in the 'Choose how to specify a proxy server settings' policy.

What it writes

Hive: HKEY_LOCAL_MACHINE
Registry key: Software\Policies\Microsoft\EdgeUpdate

Options

Option	Type	Registry value	Allowed values
URL to proxy .pac fileDefault:	Text	`ProxyPacUrl`	Up to 255 characters

Configure and deploy

Choose a state and the option values; the output below is generated from the template for exactly that.

Enabled · Computer · template defaults

Registry file (.reg)

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\EdgeUpdate]
"ProxyPacUrl"=""

PowerShell

$ErrorActionPreference = 'Stop'

function Set-RegistryValue {
    param(
        [Parameter(Mandatory = $true)][string] $Path,
        [Parameter(Mandatory = $true)][string] $Name,
        [Parameter(Mandatory = $true)][string] $PropertyType,
        [Parameter(Mandatory = $true)][object] $Value
    )

    if (-not (Test-Path -LiteralPath $Path)) {
        New-Item -Path $Path -Force | Out-Null
    }

    New-ItemProperty -LiteralPath $Path -Name $Name -PropertyType $PropertyType -Value $Value -Force | Out-Null
}

function Remove-RegistryValue {
    param(
        [Parameter(Mandatory = $true)][string] $Path,
        [Parameter(Mandatory = $true)][string] $Name
    )

    if (Test-Path -LiteralPath $Path) {
        Remove-ItemProperty -LiteralPath $Path -Name $Name -Force -ErrorAction SilentlyContinue
    }
}

function Clear-RegistryKeyValues {
    param(
        [Parameter(Mandatory = $true)][string] $Path
    )

    if (-not (Test-Path -LiteralPath $Path)) {
        return
    }

    foreach ($propertyName in (Get-Item -LiteralPath $Path).Property) {
        Remove-ItemProperty -LiteralPath $Path -Name $propertyName -Force -ErrorAction SilentlyContinue
    }
}

# Policy: URL to a proxy .pac file
# Name: Pol_ProxyPacUrl
# Scope: Machine
# State: Enabled
# Source: msedgeupdate.admx

Set-RegistryValue -Path 'Registry::HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\EdgeUpdate' -Name 'ProxyPacUrl' -PropertyType 'String' -Value ''

The OMA-URI is an inferred ADMX-backed Policy CSP candidate derived from the source ADMX file name and policy name.
Some Microsoft policies use built-in Policy CSP pages whose area names don't match the ADMX file name, so verify the candidate against Microsoft Learn before deployment.

ADMX profile candidate (OMA-URI)

./Device/Vendor/MSFT/Policy/Config/ADMX_msedgeupdate/Pol_ProxyPacUrl

ADMX SyncML candidate

<SyncML xmlns="SYNCML:SYNCML1.2">
  <SyncBody>
    <Replace>
      <CmdID>1</CmdID>
      <Item>
        <Meta>
          <Format>chr</Format>
          <Type>text/plain</Type>
        </Meta>
        <Target>
          <LocURI>./Device/Vendor/MSFT/Policy/Config/ADMX_msedgeupdate/Pol_ProxyPacUrl</LocURI>
        </Target>
        <Data>&lt;enabled/&gt;
&lt;data id="Part_ProxyPacUrl" value=""/&gt;</Data>
      </Item>
    </Replace>
    <Final/>
  </SyncBody>
</SyncML>

Intune remediation scripts

Detection

$ErrorActionPreference = 'Stop'
$reasons = [System.Collections.Generic.List[string]]::new()

function Test-RegistryValueExists {
    param(
        [Parameter(Mandatory = $true)][string] $Path,
        [Parameter(Mandatory = $true)][string] $Name
    )

    if (-not (Test-Path -LiteralPath $Path)) {
        return $false
    }

    return $null -ne (Get-ItemProperty -LiteralPath $Path -Name $Name -ErrorAction SilentlyContinue)
}

function Test-RegistryValueEquals {
    param(
        [Parameter(Mandatory = $true)][string] $Path,
        [Parameter(Mandatory = $true)][string] $Name,
        [Parameter(Mandatory = $true)][string] $Kind,
        [Parameter(Mandatory = $true)][object] $Expected
    )

    if (-not (Test-Path -LiteralPath $Path)) {
        return $false
    }

    $valueObject = Get-ItemProperty -LiteralPath $Path -Name $Name -ErrorAction SilentlyContinue
    if ($null -eq $valueObject) {
        return $false
    }

    $actual = $valueObject.$Name
    switch ($Kind) {
        'String' { return [string]$actual -ceq [string]$Expected }
        'ExpandString' { return [string]$actual -ceq [string]$Expected }
        'DWord' { return [uint32]$actual -eq [uint32]$Expected }
        'QWord' { return [uint64]$actual -eq [uint64]$Expected }
        'MultiString' {
            $actualArray = @($actual)
            $expectedArray = @($Expected)
            if ($actualArray.Count -ne $expectedArray.Count) { return $false }
            for ($index = 0; $index -lt $actualArray.Count; $index++) {
                if ([string]$actualArray[$index] -cne [string]$expectedArray[$index]) { return $false }
            }
            return $true
        }
        'Binary' {
            $actualArray = [byte[]]$actual
            $expectedArray = [byte[]]$Expected
            if ($actualArray.Length -ne $expectedArray.Length) { return $false }
            for ($index = 0; $index -lt $actualArray.Length; $index++) {
                if ($actualArray[$index] -ne $expectedArray[$index]) { return $false }
            }
            return $true
        }
        default { return [string]$actual -ceq [string]$Expected }
    }
}

# Policy: URL to a proxy .pac file
# Name: Pol_ProxyPacUrl
# Scope: Machine
# State: Enabled
# Source: msedgeupdate.admx

$isMatch = Test-RegistryValueEquals -Path 'Registry::HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\EdgeUpdate' -Name 'ProxyPacUrl' -Kind 'String' -Expected ''
if (-not $isMatch) {
    $reasons.Add('Value mismatch: HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\EdgeUpdate\ProxyPacUrl') | Out-Null
}

if ($reasons.Count -eq 0) {
    Write-Output 'Compliant'
    exit 0
}

$reasons | ForEach-Object { Write-Output $_ }
exit 1

Remediation

$ErrorActionPreference = 'Stop'

function Set-RegistryValue {
    param(
        [Parameter(Mandatory = $true)][string] $Path,
        [Parameter(Mandatory = $true)][string] $Name,
        [Parameter(Mandatory = $true)][string] $PropertyType,
        [Parameter(Mandatory = $true)][object] $Value
    )

    if (-not (Test-Path -LiteralPath $Path)) {
        New-Item -Path $Path -Force | Out-Null
    }

    New-ItemProperty -LiteralPath $Path -Name $Name -PropertyType $PropertyType -Value $Value -Force | Out-Null
}

function Remove-RegistryValue {
    param(
        [Parameter(Mandatory = $true)][string] $Path,
        [Parameter(Mandatory = $true)][string] $Name
    )

    if (Test-Path -LiteralPath $Path) {
        Remove-ItemProperty -LiteralPath $Path -Name $Name -Force -ErrorAction SilentlyContinue
    }
}

function Clear-RegistryKeyValues {
    param(
        [Parameter(Mandatory = $true)][string] $Path
    )

    if (-not (Test-Path -LiteralPath $Path)) {
        return
    }

    foreach ($propertyName in (Get-Item -LiteralPath $Path).Property) {
        Remove-ItemProperty -LiteralPath $Path -Name $propertyName -Force -ErrorAction SilentlyContinue
    }
}

# Policy: URL to a proxy .pac file
# Name: Pol_ProxyPacUrl
# Scope: Machine
# State: Enabled
# Source: msedgeupdate.admx

Set-RegistryValue -Path 'Registry::HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\EdgeUpdate' -Name 'ProxyPacUrl' -PropertyType 'String' -Value ''

History 37 retained releases

150.0.4078.8016 Jul 2026
- Already present in the first release ChangeIntel keeps.

36 later releases left it unchanged.

Template

Internal name: Pol_ProxyPacUrl
Namespace: Microsoft.Policies.Update
Template file: msedgeupdate.admx
Release: Microsoft Edge 155.0.4283.62 · file set 0a733b0040dbbf02…

Definition, editor controls and support

Definition

<policy class="Machine" displayName="$(string.Pol_ProxyPacUrl)" explainText="$(string.Explain_ProxyPacUrl)" key="Software\Policies\Microsoft\EdgeUpdate" name="Pol_ProxyPacUrl" presentation="$(presentation.Pol_ProxyPacUrl)" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
      <parentCategory ref="Microsoft.Policies.Update:Cat_ProxyServer" />
      <supportedOn ref="Microsoft.Policies.Update:Sup_GoogleUpdate1_3_21_81" />
      <elements>
        <text id="Part_ProxyPacUrl" valueName="ProxyPacUrl" />
      </elements>
    </policy>

Editor controls

<presentation id="Pol_ProxyPacUrl" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
        <textBox refId="Part_ProxyPacUrl">
          <label>URL to proxy .pac file</label>
          <defaultValue />
        </textBox>
      </presentation>

Supported platforms and category

Microsoft.Policies.Update:category:Cat_EdgeUpdate
<category displayName="$(string.Cat_GoogleUpdate)" explainText="$(string.Explain_GoogleUpdate)" name="Cat_EdgeUpdate" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
    </category>
Microsoft.Policies.Update:category:Cat_ProxyServer
<category displayName="$(string.Cat_ProxyServer)" name="Cat_ProxyServer" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
      <parentCategory ref="Microsoft.Policies.Update:Cat_EdgeUpdate" />
    </category>
Microsoft.Policies.Update:definition:Sup_GoogleUpdate1_3_21_81
<definition displayName="$(string.Sup_GoogleUpdate1_3_21_81)" name="Sup_GoogleUpdate1_3_21_81" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions" />
Microsoft.Policies.Update:category:Cat_EdgeUpdate
<category displayName="$(string.Cat_GoogleUpdate)" explainText="$(string.Explain_GoogleUpdate)" name="Cat_EdgeUpdate" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
    </category>
<strings><string id="Microsoft.Policies.Update:Cat_GoogleUpdate">Microsoft Edge Update</string><string id="Microsoft.Policies.Update:Explain_GoogleUpdate">Policies to control the installation and updating of Microsoft Edge using Microsoft Edge Update.</string></strings>
Microsoft.Policies.Update:category:Cat_ProxyServer
<category displayName="$(string.Cat_ProxyServer)" name="Cat_ProxyServer" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
      <parentCategory ref="Microsoft.Policies.Update:Cat_EdgeUpdate" />
    </category>
<strings><string id="Microsoft.Policies.Update:Cat_ProxyServer">Proxy Server</string></strings>
Microsoft.Policies.Update:definition:Sup_GoogleUpdate1_3_21_81
<definition displayName="$(string.Sup_GoogleUpdate1_3_21_81)" name="Sup_GoogleUpdate1_3_21_81" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions" />
<strings><string id="Microsoft.Policies.Update:Sup_GoogleUpdate1_3_21_81">Microsoft Edge Update 1.3.21.81 and later</string></strings>