At work and not on Windows at the moment, but AFAIK there are some command-line tools that are still named .com to avoid breaking batch files etc. that might ca

At work and not on Windows at the moment, but AFAIK there are some command-line tools that are still named .com to avoid breaking batch files etc. that might call them by full name. They're actually PE executables or whatever, so they're .com in name only. There's probably little potential for confusion with the domain, though, considering that people without significant experience probably never encounter those com executables in the first place and wouldn't even know they exist. Even people who do know enough have to ask if they're even named that way anymore. Edit: Also 16-bit processors weren't the point where com executables became replaced. PCs have been at least 16-bit since the beginning (8086) and actual com executables were still a thing.