以下のテキストファイルを unicode 以外の文字コードで作成してダブルクリックで、実現可能となる。

DateTime.reg

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\DateTime\Servers]
@="1"
"1"="ntp.nict.jp"

[HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\DateTime\Servers]
@="1"
"1"="ntp.nict.jp"

SpecialPollInterval.reg

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\W32Time\TimeProviders\NtpClient]
"SpecialPollTimeRemaining"=hex(7):74,00,69,00,6d,00,65,00,2e,00,77,00,69,00,6e,\
  00,64,00,6f,00,77,00,73,00,2e,00,63,00,6f,00,6d,00,2c,00,37,00,64,00,64,00,\
  36,00,35,00,66,00,62,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,\
  00,00,00,00,00,00,00

NtpServer.reg

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\W32Time\Parameters]
"NtpServer"="ntp.nict.jp,0x9"
"ServiceDll"=hex(2):25,00,73,00,79,00,73,00,74,00,65,00,6d,00,72,00,6f,00,6f,\
  00,74,00,25,00,5c,00,73,00,79,00,73,00,74,00,65,00,6d,00,33,00,32,00,5c,00,\
  77,00,33,00,32,00,74,00,69,00,6d,00,65,00,2e,00,64,00,6c,00,6c,00,00,00
"ServiceDllUnloadOnStop"=dword:00000001
"ServiceMain"="SvchostEntry_W32Time"
"Type"="NTP"