For those who want to read some history on Microsoft, they basically bought the rights to an already existing DOS based operating system from a guy named Tim Paterson and re-branded it as their own. That's how they got their software on the first IBM personal computers and the rest is history.
Even when they laid a graphical interface on top of it (Windows), for years it was still DOS underneath doing all the heavy lifting. Even with Windows 95, it was still easier (for those who knew DOS well) to open a command prompt and get things done that way.
The man who foisted Vista on the PC world now wants to do the same for vaccines.