'start' and command grouping

[Anton Monroe]

when I type

start 4OS2.exe /c (echo =====%_date %_time & *cdd /s fh)

it starts a new window for

4OS2.exe /c (echo =====%_date %_time

and then does

*cdd /s fh)

in the original window.

detach 4OS2.exe /c (echo =====%_date %_time & *cdd /s fh)

works as expected.

Would it be possible for start to parse that line the same way detach does?