Missing Open-With when shift-right-clicking a file in Windows 7

Solution 1:

I think this is because 'war' files simply had no file association to begin with. Clicking 'open' allows me to select the associated program.

Solution 2:

I agree with you: Windows 7 needs a file association to show "Open with..." by shift-right-clicking (just tested with some files with and without file association on Windows 7 Professional - Final). I don't know if this is a bug or a feature.

Just found a nice tool to configure the context-menu: File Menu Tools. Works perfectly with Windows 7 and you can add entries, e.g. open with notepad or open with an other program. Maybe something for you?

To enable or disable context menu entries of the explorer you can use ShellMenuView, it works also under Windows 7.