Alternately, ye could hex-edit a different OS version, such as ms dos 6.22. Serch in a hex-editor for '3D061674x', and replace the 74 with EB. This deactivates the DOS check, and allows it to run it in different DOS versions, eg 5.00 from Win2k. Note here that hex 06 16 is dec 6, 22. Not all DOS versions are true to the box name, instead, use the version given by msd as a basis.
H:\test>COMMAND.COM Microsoft(R) MS-DOS(R) Version 6.22 (C)Copyright Microsoft Corp 1981-1994. H:\TEST>dir /w Volume in drive H is Win2k Volume Serial Number is 748F-6C39 Directory of H:\TEST [.] [..] COMMAND.COM 3 file(s) 54,645 bytes 651,995,648 bytes free H:\TEST>ver /r MS-DOS Version 5.00 Revision A DOS is in HMA H:\TEST>
This shows command.com running in a DOS 5.00 session, as provided by Windows 2k. You see that the command string has returned 6.22 on load, but the underlying DOS in ver /r is 5.0.