> Well in my QC help the're listed as.

 >      P_NOWAITO     Continues to execute parent process and ignores wait
 >                    and cwait calls against child process (asynchronous
 >                    spawnÄÄvalid only in protected mode).

 >      P_DETACH      Continues to execute parent process concurrently
 >                    with child process. Child process is detached from
 >                    parent's process hierarchy; if parent process is
 >                    terminated, the child process continues to run
 >                    (asynchronous spawnÄÄvalid in protected mode only).

 > They sound like they only apply to multi-tasking OS's


Actually, OS/2 in particular. spawn() is an intel OS thing. Or really, an
intel MS (or ex-MS) thing. spawn() does not exist in POSIX (or any
'standard' UNIX either).

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