Similar to the way Notepad++ adds "Edit with Notepad++" to the context menu of all files, or how most Antivirus products will add a global "Scan this file" option, I would like to add a particular program to the context menu for all file types.
Thanks to DOSBox, I'm a little familiar with manually creating file associations and creating context menu options for specific file types.
However, I've got one program I'd like to add as a context menu globally because it can be used with files that have almost any extension. What registry keys do I need to modify for this, and what common pitfalls should I avoid in order to not break things here?
I'd rather do this manually, so that I'm intimately familiar with what changes I'm making to the system, rather than use a third-party tool. The OS I'm doing this on is Windows 7 x64, but it would be great if the same method could be used all the way back to XP. I can probably figure out the necessary command syntax myself – I just need to know which keys to go after and how to format the commands and labels to be properly recognized in those keys.