I just installed a fresh copy of Windows 7, and almost all of my  previously installed program on Windows Vista is working perfectly. One of them is Notepad++.

But there’s one thing missed: there is no Open with Notepad++ option on Windows Explorer context menu when I try to right-clicking on text files. I guess this is a bug from Notepad++. I am using Notepad++ v5.5.1 Unicode.

Try Googling about this problem and I found one working solution using Registry patch. Just copy and paste the following code to Notepad, save it as patch.reg file, and execute it. Voila!

Windows Registry Editor Version 5.00
[HKEY_CLASSES_ROOT\*\shell\Open with Notepad++\command]
@="\"C:\\Program Files (x86)\\Notepad++\\notepad++.exe\" \"%1\""