Send internationalized domain names: registry value EnablePunyCodeUserHKCU\Software\Policies\Microsoft\Windows\CurrentVersion\Internet Settings
- Policy ID
- ControlPanel_SendIDNNames
- Scope
- Computer Configuration, User Configuration
- Supported on
- At least Internet Explorer 7.0
- Source
- Administrative Templates (.admx) for Windows 11 2026 Update (26H2) (version 1.0)
- Category
- Windows Components › Internet Explorer › Internet Control Panel
Registry
EnablePunyCode
REG_DWORDUserComputer…\Software\Policies\Microsoft\Windows\CurrentVersion\Internet SettingsHKCU\Software\Policies\Microsoft\Windows\CurrentVersion\Internet Settings Current key
HKLM\Software\Policies\Microsoft\Windows\CurrentVersion\Internet Settings
HKLM\Software\Policies\Microsoft\Windows\CurrentVersion\Internet Settings
- Enabled value
- Depends on the option value
- Element
- Select the desired behavior
| Item | Stored value |
|---|---|
| Never convert to IDN format | 0 |
| Convert non-Intranet addresses to IDN format | 1 |
| Convert Intranet addresses to IDN format | 2 |
| Always convert to IDN format | 3 |
Apply with .reg · CMD · PowerShell
UserPer-account setting
.reg
Windows Registry Editor Version 5.00 [HKEY_CURRENT_USER\Software\Policies\Microsoft\Windows\CurrentVersion\Internet Settings] ; Options (use only one) ; Never convert to IDN format "EnablePunyCode"=dword:00000000 ; Convert non-Intranet addresses to IDN format "EnablePunyCode"=dword:00000001 ; Convert Intranet addresses to IDN format "EnablePunyCode"=dword:00000002 ; Always convert to IDN format "EnablePunyCode"=dword:00000003
CMD
:: Options (use only one) :: Never convert to IDN format reg add "HKCU\Software\Policies\Microsoft\Windows\CurrentVersion\Internet Settings" /v "EnablePunyCode" /t REG_DWORD /d 0 /f :: Convert non-Intranet addresses to IDN format reg add "HKCU\Software\Policies\Microsoft\Windows\CurrentVersion\Internet Settings" /v "EnablePunyCode" /t REG_DWORD /d 1 /f :: Convert Intranet addresses to IDN format reg add "HKCU\Software\Policies\Microsoft\Windows\CurrentVersion\Internet Settings" /v "EnablePunyCode" /t REG_DWORD /d 2 /f :: Always convert to IDN format reg add "HKCU\Software\Policies\Microsoft\Windows\CurrentVersion\Internet Settings" /v "EnablePunyCode" /t REG_DWORD /d 3 /f
PowerShell
# Common: create the key New-Item -Path 'HKCU:\Software\Policies\Microsoft\Windows\CurrentVersion\Internet Settings' -Force | Out-Null # Options (use only one) # Never convert to IDN format New-ItemProperty -Path 'HKCU:\Software\Policies\Microsoft\Windows\CurrentVersion\Internet Settings' -Name 'EnablePunyCode' -PropertyType DWord -Value 0 -Force | Out-Null # Convert non-Intranet addresses to IDN format New-ItemProperty -Path 'HKCU:\Software\Policies\Microsoft\Windows\CurrentVersion\Internet Settings' -Name 'EnablePunyCode' -PropertyType DWord -Value 1 -Force | Out-Null # Convert Intranet addresses to IDN format New-ItemProperty -Path 'HKCU:\Software\Policies\Microsoft\Windows\CurrentVersion\Internet Settings' -Name 'EnablePunyCode' -PropertyType DWord -Value 2 -Force | Out-Null # Always convert to IDN format New-ItemProperty -Path 'HKCU:\Software\Policies\Microsoft\Windows\CurrentVersion\Internet Settings' -Name 'EnablePunyCode' -PropertyType DWord -Value 3 -Force | Out-Null
ComputerMachine-wide setting
.reg
Windows Registry Editor Version 5.00 [HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\CurrentVersion\Internet Settings] ; Options (use only one) ; Never convert to IDN format "EnablePunyCode"=dword:00000000 ; Convert non-Intranet addresses to IDN format "EnablePunyCode"=dword:00000001 ; Convert Intranet addresses to IDN format "EnablePunyCode"=dword:00000002 ; Always convert to IDN format "EnablePunyCode"=dword:00000003
CMD
:: Options (use only one) :: Never convert to IDN format reg add "HKLM\Software\Policies\Microsoft\Windows\CurrentVersion\Internet Settings" /v "EnablePunyCode" /t REG_DWORD /d 0 /f :: Convert non-Intranet addresses to IDN format reg add "HKLM\Software\Policies\Microsoft\Windows\CurrentVersion\Internet Settings" /v "EnablePunyCode" /t REG_DWORD /d 1 /f :: Convert Intranet addresses to IDN format reg add "HKLM\Software\Policies\Microsoft\Windows\CurrentVersion\Internet Settings" /v "EnablePunyCode" /t REG_DWORD /d 2 /f :: Always convert to IDN format reg add "HKLM\Software\Policies\Microsoft\Windows\CurrentVersion\Internet Settings" /v "EnablePunyCode" /t REG_DWORD /d 3 /f
PowerShell
# Common: create the key New-Item -Path 'HKLM:\Software\Policies\Microsoft\Windows\CurrentVersion\Internet Settings' -Force | Out-Null # Options (use only one) # Never convert to IDN format New-ItemProperty -Path 'HKLM:\Software\Policies\Microsoft\Windows\CurrentVersion\Internet Settings' -Name 'EnablePunyCode' -PropertyType DWord -Value 0 -Force | Out-Null # Convert non-Intranet addresses to IDN format New-ItemProperty -Path 'HKLM:\Software\Policies\Microsoft\Windows\CurrentVersion\Internet Settings' -Name 'EnablePunyCode' -PropertyType DWord -Value 1 -Force | Out-Null # Convert Intranet addresses to IDN format New-ItemProperty -Path 'HKLM:\Software\Policies\Microsoft\Windows\CurrentVersion\Internet Settings' -Name 'EnablePunyCode' -PropertyType DWord -Value 2 -Force | Out-Null # Always convert to IDN format New-ItemProperty -Path 'HKLM:\Software\Policies\Microsoft\Windows\CurrentVersion\Internet Settings' -Name 'EnablePunyCode' -PropertyType DWord -Value 3 -Force | Out-Null