You need to get off of that bandwagon. W2K3 does come with DOS, it's just not normally used. The command prompt is started with CMD.EXE, but MS-DOS is started with COMMAND.COM. According to Microsoft's knowlege base command.com is still included with W2K3, but if it's missing or damaged, it can be re-installed from the W2K3 CD.
Here's a listing from Microsoft's TechNet of other MS-DOS commands included with W2K3.
I'm sure there are others, those are the ones that they made changes to their functionality.