On Sunday 14 July 2002 02:00, you wrote:

> I think you're right; I don't know about XP, though.
> See the 'assoc' and 'ftype' commands; on my Win2k box:
>
> C:\>assoc .rb
> ..rb=rbFile
>
> C:\>ftype rbfile
> rbfile="C:\ruby\bin\ruby.exe" "%1" %*

Sure, Xp inherited from NT and 'NT cmd.exe' tightly integrated
with native win32 syscall, while win9x DOS 'command.com' is
just a plain dos, it know nothing about win32 filetype assoc.