I downloaded FileSalvage to try it out, but when I launch it, it asks to install "files necessary to run this program." I looked over the manual and couldn't find a listing of these necessary files and their locations.

Sorry but I don't trust these utility sort of apps that spread their code all over my system. In my experience this results in background processes hogging CPU time or even mysterious "phone home" network traffic. Maybe FS doesn't do this, but how do I know? I just did a full reinstall to purge my drive of all the leftover turds from Techtool Pro - I'm not going to let another utility drop it's bread crumbs all over my system.

"A+" for effort, "D-" for bad documentation. This looks like a wonderful app. Tell me what it installs and I'll try it.