找到了個更簡單的:

(CMD執行): reg add HKCU\Software\Microsoft\InputMethod\Settings\CHS /v UserDefinedDoublePinyinScheme0 /t REG_SZ /d "小鹤双拼2^*iuvdjhcwfg^xmlnpbksqszxkrltvyovt"
Form: https://github.com/2015WUJI01/xhup-for-win10/blob/master/xhup.reg