Intranet proxy servers for apps: registry value DomainLocalProxiesComputerHKLM\SOFTWARE\Policies\Microsoft\Windows\NetworkIsolation

Policy ID: WF_NetIsolation_Intranet_Proxies
Scope: Computer Configuration
Supported on: At least Windows Server 2012, Windows 8 or Windows RT
Source: Administrative Templates (.admx) for Windows 11 2026 Update (26H2) (version 1.0)
Category: Network › Network Isolation

Registry

DomainLocalProxies

REG_SZComputer

HKLM\SOFTWARE\Policies\Microsoft\Windows\NetworkIsolation Current key

Enabled value: Depends on the option value
Element: Type a proxy server IP address for the intranet
Value type: REG_SZ
Required: true

Apply with .reg · CMD · PowerShell

.reg

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\NetworkIsolation]

; Value names and types follow the ADMX. Replace <enter value> below with your own data
"DomainLocalProxies"="<enter value>"

CMD

:: Value names and types follow the ADMX. Replace <enter value> below with your own data

reg add "HKLM\SOFTWARE\Policies\Microsoft\Windows\NetworkIsolation" /v "DomainLocalProxies" /t REG_SZ /d "<enter value>" /f

PowerShell

# Value names and types follow the ADMX. Replace <enter value> below with your own data

New-Item -Path 'HKLM:\SOFTWARE\Policies\Microsoft\Windows\NetworkIsolation' -Force | Out-Null
New-ItemProperty -Path 'HKLM:\SOFTWARE\Policies\Microsoft\Windows\NetworkIsolation' -Name 'DomainLocalProxies' -PropertyType String -Value '<enter value>' -Force | Out-Null