If it were possible, the biggest business opportunity would be a turnkey, self-hosted file conversion service. The only outbound internet traffic should be for

If it were possible, the biggest business opportunity would be a turnkey, self-hosted file conversion service. The only outbound internet traffic should be for software updates and responding to incoming traffic - and because it's self-hosted, the business could put it behind a firewall and have complete certainty in the privacy of their information, which would be huge. If you had that, plus an all-in-one, easily-deployable browser plugin which overrides standard file conversion websites to force users to the self-hosted business-approved converter (and, preferably, adds a Start Menu link)...