新建一个注册表文件，并导入注册表即可。
New_Text.reg
| Windows Registry Editor Version 5.00 [HKEY_CLASSES_ROOT\.txt] @=”txtfile” “Content Type”=”text/plain” [HKEY_CLASSES_ROOT\.txt\ShellNew] “NullFile”=”” [HKEY_CLASSES_ROOT\txtfile] @=”Text Document” [HKEY_CLASSES_ROOT\txtfile\shell] [HKEY_CLASSES_ROOT\txtfile\shell\open] [HKEY_CLASSES_ROOT\txtfile\shell\open\command] @=hex(2):25,00,53,00,79,00,73,00,74,00,65,00,6d,00,52,00,6f,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,00,4e,00,4f,00,\54,00,45,00,50,00,41,00,44,00,2e,00,45,00,58,00,45,00,20,00,25,00,31,00,00,\00 |
导入注册表后：
