Windows Components › Internet Explorer › Internet Control Panel › Advanced Page

Allow Internet Explorer to use the SPDY/3 network protocol

Computer and userNeeds changes for IntuneAdvanced_EnableSPDY3_0

Supported on Only Internet Explorer 11.0 on Windows 8.1

25H2 · 1.0

What it does

This policy setting determines whether Internet Explorer uses the SPDY/3 network protocol. SPDY/3 works with HTTP requests to optimize the latency of network requests through compression, multiplexing and prioritization. If you enable this policy setting, Internet Explorer uses the SPDY/3 network protocol. If you disable this policy setting, Internet Explorer won't use the SPDY/3 network protocol. If you don't configure this policy setting, users can turn this behavior on or off, using Internet Explorer Advanced Internet Options settings. The default is on.

What it writes

Hive: HKEY_LOCAL_MACHINE or HKEY_CURRENT_USER
Registry key: SOFTWARE\Policies\Microsoft\Windows\CurrentVersion\Internet Settings
Value name: EnableSPDY3_0
When enabled: DWORD 1
When disabled: DWORD 0

Why it needs changes for Intune

Policy references a Windows supportedOn definition.
ADMX-INTUNE-WINDOWS-SUPPORTEDON-REFERENCE

In Intune

No native CSP; import the ADMX (needs changes first).

From Microsoft's Policy CSP DDF files (DDF v2 Files, February 2026), read 18 Oct 2026.

Configure and deploy

Choose a state; 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\Windows\CurrentVersion\Internet Settings]
"EnableSPDY3_0"=dword:00000001

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: Allow Internet Explorer to use the SPDY/3 network protocol
# Name: Advanced_EnableSPDY3_0
# Scope: Machine
# State: Enabled
# Source: inetres.admx

Set-RegistryValue -Path 'Registry::HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\CurrentVersion\Internet Settings' -Name 'EnableSPDY3_0' -PropertyType 'DWord' -Value 1

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_inetres/Advanced_EnableSPDY3_0

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_inetres/Advanced_EnableSPDY3_0</LocURI>
        </Target>
        <Data>&lt;enabled/&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: Allow Internet Explorer to use the SPDY/3 network protocol
# Name: Advanced_EnableSPDY3_0
# Scope: Machine
# State: Enabled
# Source: inetres.admx

$isMatch = Test-RegistryValueEquals -Path 'Registry::HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\CurrentVersion\Internet Settings' -Name 'EnableSPDY3_0' -Kind 'DWord' -Expected 1
if (-not $isMatch) {
    $reasons.Add('Value mismatch: HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\CurrentVersion\Internet Settings\EnableSPDY3_0') | 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: Allow Internet Explorer to use the SPDY/3 network protocol
# Name: Advanced_EnableSPDY3_0
# Scope: Machine
# State: Enabled
# Source: inetres.admx

Set-RegistryValue -Path 'Registry::HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\CurrentVersion\Internet Settings' -Name 'EnableSPDY3_0' -PropertyType 'DWord' -Value 1

History 5 retained releases

22H2 · 1.015 Jul 2024
- Already present in the first release ChangeIntel keeps.

4 later releases left it unchanged.

Template

Internal name: Advanced_EnableSPDY3_0
Namespace: Microsoft.Policies.InternetExplorer
Template file: inetres.admx
Release: Windows 11 25H2 · 1.0 · file set de4e49983ebd651f…

Definition, editor controls and support

Definition

<policy class="Both" displayName="$(string.Advanced_EnableSPDY3_0)" explainText="$(string.Advanced_ExplainEnableSPDY3_0)" key="SOFTWARE\Policies\Microsoft\Windows\CurrentVersion\Internet Settings" name="Advanced_EnableSPDY3_0" valueName="EnableSPDY3_0" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
      <parentCategory ref="Microsoft.Policies.InternetExplorer:AdvancedPage" />
      <supportedOn ref="Microsoft.Policies.InternetExplorer:SUPPORTED_IE11WIN8ONLY" />
      <enabledValue>
        <decimal value="1" />
      </enabledValue>
      <disabledValue>
        <decimal value="0" />
      </disabledValue>
    </policy>

Editor controls

Supported platforms and category

Microsoft.Policies.InternetExplorer:category:AdvancedPage
<category displayName="$(string.AdvancedPage)" name="AdvancedPage" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
      <parentCategory ref="Microsoft.Policies.InternetExplorer:InternetCPL" />
    </category>
Microsoft.Policies.InternetExplorer:category:InternetCPL
<category displayName="$(string.InternetCPL)" explainText="$(string.IE_ExplainInternetCPLCategory)" name="InternetCPL" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
      <parentCategory ref="Microsoft.Policies.InternetExplorer:InternetExplorer" />
    </category>
Microsoft.Policies.InternetExplorer:category:InternetExplorer
<category displayName="$(string.InternetExplorer)" explainText="$(string.IE_ExplainCat)" name="InternetExplorer" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
      <parentCategory ref="Microsoft.Policies.Windows:WindowsComponents" />
    </category>
Microsoft.Policies.InternetExplorer:definition:SUPPORTED_IE11WIN8ONLY
<definition displayName="$(string.SUPPORTED_IE11WIN8ONLY)" name="SUPPORTED_IE11WIN8ONLY" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
        <and>
          <range ref="Microsoft.Policies.Products:InternetExplorer110" />
          <reference ref="Microsoft.Policies.Windows:SUPPORTED_Windows_6_3only" />
        </and>
      </definition>
Microsoft.Policies.InternetExplorer:unresolved:Microsoft.Policies.Products:InternetExplorer110
<unresolved reference="Microsoft.Policies.Products:InternetExplorer110" />
Microsoft.Policies.Windows:category:WindowsComponents
<category displayName="$(string.WindowsComponents)" explainText="$(string.WindowsComponents_Help)" name="WindowsComponents" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions" />
Microsoft.Policies.Windows:definition:SUPPORTED_Windows_6_3only
<definition displayName="$(string.SUPPORTED_Windows_6_3only)" name="SUPPORTED_Windows_6_3only" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
        <or>
          <range ref="Microsoft.Policies.Products:MicrosoftWindows_6_3" />
          <range ref="Microsoft.Policies.Products:MicrosoftWindowsServer_6_3" />
          <range ref="Microsoft.Policies.Products:MicrosoftWindows_6_3_RT" />
        </or>
      </definition>
Microsoft.Policies.Windows:unresolved:Microsoft.Policies.Products:MicrosoftWindowsServer_6_3
<unresolved reference="Microsoft.Policies.Products:MicrosoftWindowsServer_6_3" />
Microsoft.Policies.Windows:unresolved:Microsoft.Policies.Products:MicrosoftWindows_6_3
<unresolved reference="Microsoft.Policies.Products:MicrosoftWindows_6_3" />
Microsoft.Policies.Windows:unresolved:Microsoft.Policies.Products:MicrosoftWindows_6_3_RT
<unresolved reference="Microsoft.Policies.Products:MicrosoftWindows_6_3_RT" />
Microsoft.Policies.InternetExplorer:category:AdvancedPage
<category displayName="$(string.AdvancedPage)" name="AdvancedPage" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
      <parentCategory ref="Microsoft.Policies.InternetExplorer:InternetCPL" />
    </category>
<strings><string id="Microsoft.Policies.InternetExplorer:AdvancedPage">Advanced Page</string></strings>
Microsoft.Policies.InternetExplorer:category:InternetCPL
<category displayName="$(string.InternetCPL)" explainText="$(string.IE_ExplainInternetCPLCategory)" name="InternetCPL" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
      <parentCategory ref="Microsoft.Policies.InternetExplorer:InternetExplorer" />
    </category>
<strings><string id="Microsoft.Policies.InternetExplorer:IE_ExplainInternetCPLCategory">Contains settings that control features found in the Internet Options dialog.</string><string id="Microsoft.Policies.InternetExplorer:InternetCPL">Internet Control Panel</string></strings>
Microsoft.Policies.InternetExplorer:category:InternetExplorer
<category displayName="$(string.InternetExplorer)" explainText="$(string.IE_ExplainCat)" name="InternetExplorer" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
      <parentCategory ref="Microsoft.Policies.Windows:WindowsComponents" />
    </category>
<strings><string id="Microsoft.Policies.InternetExplorer:IE_ExplainCat">Contains settings to configure Internet Explorer</string><string id="Microsoft.Policies.InternetExplorer:InternetExplorer">Internet Explorer</string></strings>
Microsoft.Policies.InternetExplorer:definition:SUPPORTED_IE11WIN8ONLY
<definition displayName="$(string.SUPPORTED_IE11WIN8ONLY)" name="SUPPORTED_IE11WIN8ONLY" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
        <and>
          <range ref="Microsoft.Policies.Products:InternetExplorer110" />
          <reference ref="Microsoft.Policies.Windows:SUPPORTED_Windows_6_3only" />
        </and>
      </definition>
<strings><string id="Microsoft.Policies.InternetExplorer:SUPPORTED_IE11WIN8ONLY">Only Internet Explorer 11.0 on Windows 8.1</string></strings>
Microsoft.Policies.Windows:category:WindowsComponents
<category displayName="$(string.WindowsComponents)" explainText="$(string.WindowsComponents_Help)" name="WindowsComponents" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions" />
<strings><string id="Microsoft.Policies.Windows:WindowsComponents">Windows Components</string><string id="Microsoft.Policies.Windows:WindowsComponents_Help">Contains settings for operating system components.</string></strings>
Microsoft.Policies.Windows:definition:SUPPORTED_Windows_6_3only
<definition displayName="$(string.SUPPORTED_Windows_6_3only)" name="SUPPORTED_Windows_6_3only" xmlns="http://schemas.microsoft.com/GroupPolicy/2006/07/PolicyDefinitions">
        <or>
          <range ref="Microsoft.Policies.Products:MicrosoftWindows_6_3" />
          <range ref="Microsoft.Policies.Products:MicrosoftWindowsServer_6_3" />
          <range ref="Microsoft.Policies.Products:MicrosoftWindows_6_3_RT" />
        </or>
      </definition>
<strings><string id="Microsoft.Policies.Windows:SUPPORTED_Windows_6_3only">Windows Server 2012 R2, Windows 8.1 or Windows RT 8.1 only</string></strings>