Vista system right-click menu added with Notepad open function

encountered some unknown file type, usually opened in Notepad to view the file content, the article describes the use of the registry modification under Windows Vista to make the right-click menu more A function that opens with a notepad.
Under Vista, when encountering an unknown file type, the default setting is to provide you with a range of installed programs to choose from, and in most cases, these programs are not what we need.
For example, when we want to open a conf file in Notepad, we need to double-click - select Program - OK - Select Notepad - OK from the list of installed programs. Let's simplify this by modifying the registry.
1.Win+R running Regedit
2. Directed to the following item:
HKEY_CLASSES_ROOT\\*\\shell (note the middle *)
3. Right-click shell - create a new item named Open with Notepad
4. Create a new item under it named command
5. Double-click the Default key on the right and enter
notepad.exe %1

Figure 1 New project command

Figure 2 Effect