4.2.5 IDN Configuration
The following is an example of a Name Resolution Policy entry to apply internationalized domain name processing for names under the idn.example.com domain. The policy requires that all names in this domain be encoded in Punycode.
Key: SOFTWARE\Policies\Microsoft\Windows NT\DNSClient\DnsPolicyConfig\{Rule GUID}
Value: "Version"
Type: REG_DWORD
Size: 32 bits.
Data: 1
Value: "Name"
Type: REG_MULTI_SZ.
Size: Equal to the size of the data field.
Data: ".dnssec.example.com"
Value: "ConfigOptions"
Type: REG_DWORD
Size: 32 bits.
Data: 000000010
Value: "IDNConfig"
Type: Reg_DWORD
Size: 32 bits
Data: 00000002