I made this quickly with AutoHotkey, I haven't tested it in every possible scenario so it may contain various bugs depending on characters in files/folders that I haven't accounted for. This may or may not work on Windows 8, I have no idea (it should though..)
What it does:
- Pressing F3 while on the desktop or in Windows Explorer will open up a new instance of Everything with the address of the folder you were browsing already entered; from there you can just append a search query onto the end of the path to find files in the specified path
- When searching from the Start Menu, the instant results are not returned by Everything, they're still returned using Windows Search (and honestly I'm not sure that can ever be changed). However, pressing "See more results" will open up an instance of Everything containing your search query.
- EverythingIntegration.exe can be placed anywhere, but should be run at startup
- EverythingPassVar.exe must be placed in your C:\Windows\ folder
- Ensure that Everything.exe (the search program itself) is located at C:\Program Files (x86)\Everything\Everything.exe
- Merge the registry values contained in EverythingRegistry.reg into your registry
- Delete EverythingIntegration.exe, EverythingPassVar.exe (optional)
- Merge the registry values contained in EverythingIntegrationUninstall.reg into your registry (required)
Enjoy
Download: EverythingIntegration.zip