Configure MMS Proxy
Verified with Windows 11 25H2 — updated on July 30, 2026
Supported on: Windows Server 2003, Windows XP, and Windows 2000 only
Path in the GPO console
User Configuration\Administrative Templates\Windows Components\Windows Media Player\Networking Description
This policy setting allows you to specify the MMS proxy settings for Windows Media Player. If you enable this policy setting, select one of the following proxy types: - Autodetect: the proxy settings are automatically detected. - Custom: unique proxy settings are used. If the Custom proxy type is selected, the rest of the options on the Setting tab must be specified; otherwise, the default settings are used. The options are ignored if Autodetect is selected. The Configure button on the Network tab in the Player is not available and the protocol cannot be configured. If the "Hide network tab" policy setting is also enabled, the entire Network tab is hidden. This policy setting is ignored if the "Streaming media protocols" policy setting is enabled and Multicast is not selected. If you disable this policy setting, the MMS proxy server cannot be used and users cannot configure the MMS proxy settings. If you do not configure this policy setting, users can configure the MMS proxy settings.
Registry
HKCU
Software\Policies\Microsoft\WindowsMediaPlayer\Protocols\MMS Value name: ProxyPolicy
Enabled: ProxyPolicy = 1
Disabled: ProxyPolicy = 0
MDM / Intune (CSP)
./User/Vendor/MSFT/Policy/Config/ADMX_WindowsMediaPlayer/ConfigureMMSProxySettings Microsoft Learn documentation Mapping data: Microsoft Learn (CC BY 4.0)
Export Builder
BETAConfigure 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 MMS Proxy
; State: Enabled
; Supported on: Windows Server 2003, Windows XP, and Windows 2000 only
[HKEY_CURRENT_USER\Software\Policies\Microsoft\WindowsMediaPlayer\Protocols\MMS]
"ProxyPolicy"=dword:00000001
"ProxyType"=dword:00000003
"ProxyAddress"=""
"ProxyPort"=dword:00000050
"BypassProxyLocal"=dword:00000000
"ExludeFromProxy"=""More formats (PowerShell, Intune, SCCM)
PowerShell
# Exported from gporais.com
# Policy: Configure MMS Proxy
# State: Enabled
# Supported on: Windows Server 2003, Windows XP, and Windows 2000 only
# 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\WindowsMediaPlayer\Protocols\MMS'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'ProxyPolicy' -Value 1 -Type DWord
Set-ItemProperty -Path $path -Name 'ProxyType' -Value 3 -Type DWord
Set-ItemProperty -Path $path -Name 'ProxyAddress' -Value '' -Type String
Set-ItemProperty -Path $path -Name 'ProxyPort' -Value 80 -Type DWord
Set-ItemProperty -Path $path -Name 'BypassProxyLocal' -Value 0 -Type DWord
Set-ItemProperty -Path $path -Name 'ExludeFromProxy' -Value '' -Type StringIntune XML
OMA-URI: ./User/Vendor/MSFT/Policy/Config/ADMX_WindowsMediaPlayer/ConfigureMMSProxySettings
Data type: String
Value:
<enabled/>
<data id="Proxytype" value="3"/>
<data id="ProxyAddress" value=""/>
<data id="ProxyPort" value="80"/>
<data id="BypassProxyLocal" value="0"/>
<data id="DoNotUseProxyLocal" value=""/>Intune Remediation
# === Detection script ===
# Exported from gporais.com
# Policy: Configure MMS Proxy
# State: Enabled
# Supported on: Windows Server 2003, Windows XP, and Windows 2000 only
# Warning: In SYSTEM context (the Intune default), HKCU targets the SYSTEM profile. Run this script using the logged-on credentials.
function Test-RegistryValue {
param(
[Parameter(Mandatory = $true)][string]$Path,
[Parameter(Mandatory = $true)][string]$Name,
[object]$Expected,
[ValidateSet('String', 'DWord', 'MultiString')][string]$Kind = 'String',
[switch]$Absent
)
try {
$item = Get-ItemProperty -LiteralPath $Path -Name $Name -ErrorAction Stop
} catch {
return $Absent.IsPresent
}
if ($Absent.IsPresent) { return $false }
$actual = $item.$Name
if ($Kind -eq 'DWord') { return ([int64]$actual) -eq ([int64]$Expected) }
if ($Kind -eq 'MultiString') {
$actualValues = @($actual)
$expectedValues = @($Expected)
if ($actualValues.Count -ne $expectedValues.Count) { return $false }
for ($i = 0; $i -lt $expectedValues.Count; $i++) {
if ([string]$actualValues[$i] -ne [string]$expectedValues[$i]) { return $false }
}
return $true
}
return [string]$actual -eq [string]$Expected
}
$checks = @(
(Test-RegistryValue -Path 'HKCU:\Software\Policies\Microsoft\WindowsMediaPlayer\Protocols\MMS' -Name 'ProxyPolicy' -Expected 1 -Kind DWord)
(Test-RegistryValue -Path 'HKCU:\Software\Policies\Microsoft\WindowsMediaPlayer\Protocols\MMS' -Name 'ProxyType' -Expected 3 -Kind DWord)
(Test-RegistryValue -Path 'HKCU:\Software\Policies\Microsoft\WindowsMediaPlayer\Protocols\MMS' -Name 'ProxyAddress' -Expected '' -Kind String)
(Test-RegistryValue -Path 'HKCU:\Software\Policies\Microsoft\WindowsMediaPlayer\Protocols\MMS' -Name 'ProxyPort' -Expected 80 -Kind DWord)
(Test-RegistryValue -Path 'HKCU:\Software\Policies\Microsoft\WindowsMediaPlayer\Protocols\MMS' -Name 'BypassProxyLocal' -Expected 0 -Kind DWord)
(Test-RegistryValue -Path 'HKCU:\Software\Policies\Microsoft\WindowsMediaPlayer\Protocols\MMS' -Name 'ExludeFromProxy' -Expected '' -Kind String)
)
if ($checks -notcontains $false) {
Write-Output 'Compliant'
exit 0
}
Write-Output 'Non-compliant'
exit 1
# === Remediation script ===
# Exported from gporais.com
# Policy: Configure MMS Proxy
# State: Enabled
# Supported on: Windows Server 2003, Windows XP, and Windows 2000 only
# 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\WindowsMediaPlayer\Protocols\MMS'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'ProxyPolicy' -Value 1 -Type DWord
Set-ItemProperty -Path $path -Name 'ProxyType' -Value 3 -Type DWord
Set-ItemProperty -Path $path -Name 'ProxyAddress' -Value '' -Type String
Set-ItemProperty -Path $path -Name 'ProxyPort' -Value 80 -Type DWord
Set-ItemProperty -Path $path -Name 'BypassProxyLocal' -Value 0 -Type DWord
Set-ItemProperty -Path $path -Name 'ExludeFromProxy' -Value '' -Type StringSCCM scripts
# Exported from gporais.com
# Policy: Configure MMS Proxy
# State: Enabled
# Supported on: Windows Server 2003, Windows XP, and Windows 2000 only
# SCCM Configuration Item guidance:
# Create a Configuration Item of type "Setting: Script".
# Discovery script: use the Detection script below.
# Remediation script: use the Remediation script below.
# Compliance rule: the Discovery script output equals 'Compliant'.
# === Detection script ===
# Exported from gporais.com
# Policy: Configure MMS Proxy
# State: Enabled
# Supported on: Windows Server 2003, Windows XP, and Windows 2000 only
# Warning: In SYSTEM context (the Intune default), HKCU targets the SYSTEM profile. Run this script using the logged-on credentials.
function Test-RegistryValue {
param(
[Parameter(Mandatory = $true)][string]$Path,
[Parameter(Mandatory = $true)][string]$Name,
[object]$Expected,
[ValidateSet('String', 'DWord', 'MultiString')][string]$Kind = 'String',
[switch]$Absent
)
try {
$item = Get-ItemProperty -LiteralPath $Path -Name $Name -ErrorAction Stop
} catch {
return $Absent.IsPresent
}
if ($Absent.IsPresent) { return $false }
$actual = $item.$Name
if ($Kind -eq 'DWord') { return ([int64]$actual) -eq ([int64]$Expected) }
if ($Kind -eq 'MultiString') {
$actualValues = @($actual)
$expectedValues = @($Expected)
if ($actualValues.Count -ne $expectedValues.Count) { return $false }
for ($i = 0; $i -lt $expectedValues.Count; $i++) {
if ([string]$actualValues[$i] -ne [string]$expectedValues[$i]) { return $false }
}
return $true
}
return [string]$actual -eq [string]$Expected
}
$checks = @(
(Test-RegistryValue -Path 'HKCU:\Software\Policies\Microsoft\WindowsMediaPlayer\Protocols\MMS' -Name 'ProxyPolicy' -Expected 1 -Kind DWord)
(Test-RegistryValue -Path 'HKCU:\Software\Policies\Microsoft\WindowsMediaPlayer\Protocols\MMS' -Name 'ProxyType' -Expected 3 -Kind DWord)
(Test-RegistryValue -Path 'HKCU:\Software\Policies\Microsoft\WindowsMediaPlayer\Protocols\MMS' -Name 'ProxyAddress' -Expected '' -Kind String)
(Test-RegistryValue -Path 'HKCU:\Software\Policies\Microsoft\WindowsMediaPlayer\Protocols\MMS' -Name 'ProxyPort' -Expected 80 -Kind DWord)
(Test-RegistryValue -Path 'HKCU:\Software\Policies\Microsoft\WindowsMediaPlayer\Protocols\MMS' -Name 'BypassProxyLocal' -Expected 0 -Kind DWord)
(Test-RegistryValue -Path 'HKCU:\Software\Policies\Microsoft\WindowsMediaPlayer\Protocols\MMS' -Name 'ExludeFromProxy' -Expected '' -Kind String)
)
if ($checks -notcontains $false) {
Write-Output 'Compliant'
exit 0
}
Write-Output 'Non-compliant'
exit 1
# === Remediation script ===
# Exported from gporais.com
# Policy: Configure MMS Proxy
# State: Enabled
# Supported on: Windows Server 2003, Windows XP, and Windows 2000 only
# 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\WindowsMediaPlayer\Protocols\MMS'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'ProxyPolicy' -Value 1 -Type DWord
Set-ItemProperty -Path $path -Name 'ProxyType' -Value 3 -Type DWord
Set-ItemProperty -Path $path -Name 'ProxyAddress' -Value '' -Type String
Set-ItemProperty -Path $path -Name 'ProxyPort' -Value 80 -Type DWord
Set-ItemProperty -Path $path -Name 'BypassProxyLocal' -Value 0 -Type DWord
Set-ItemProperty -Path $path -Name 'ExludeFromProxy' -Value '' -Type StringBuilding a multi-setting collection? Add this setting and generate combined .reg / PowerShell / GPO scripts.