View webpage source files using other editors in IE7

When browsing the Internet, you often need to view the source code of HTML files on the webpage. Notepad features are relatively simple. Many friends prefer to use a third-party text file editor, such as UltraEdit.
So what if we asked IE7 to automatically call our favorite text editor instead of the default notepad when viewing the webpage source file?

1. Enter "regedit" in the search box of the Start menu and press enter to open the Registry Editor. Windows Vista will pop up the corresponding UAC prompt window, enter the administrator password or confirm.

2. Find the following registry branches:

HKEY_LOCAL_MacHINESOFTWAREMicrosoftInternet assumerview Source EditorEditor Name

If the corresponding registry key does not exist, create it.

3. Change the default registry key value under the Branch to the absolute path of the text editor to be used, for example, "C: Program FilesIDM Computer SolutionsUltraEdit-32uedit32.exe