IDN mapping

Supported on: At least Windows Server 2012, Windows 8 or Windows RT

Registry

HKLM Software\Policies\Microsoft\Windows NT\DNSClient

Value name: EnableIdnMapping

Enabled: EnableIdnMapping = 1

Disabled: EnableIdnMapping = 0

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.