IDN mapping
- Policy ID
- DNS_IdnMapping
- 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 › DNS Client
Description
Specifies whether the DNS client should convert internationalized domain names (IDNs) to the Nameprep form, a canonical Unicode representation of the string.
If this policy setting is enabled, IDNs are converted to the Nameprep form.
If this policy setting is disabled, or if this policy setting is not configured, IDNs are not converted to the Nameprep form.
Registry
ComputerHKEY_LOCAL_MACHINE
- EnableIdnMappingREG_DWORD