[Vortex]

Thanks, David. I tried that already, but no matter what switch I used it tried to open the ebook file with the 'Everything Search' application and failed with the error message- "not a valid file list".

I've managed to get the 'Search the Internet' plugin to open the 'Everything Search' application by copying Everything.exe from it's directory to the desktop and typing: Everything.exe into the url box, but any attempt to add switches after "Everything.exe" (so it will pass on the search terms to the Everything Search) causes it to stop working.
It seems like if there are spaces it cant cope with it and fails, and if there isn't spaces it then thinks it's part of the file path and fails...