large readwrite flag

[Linda W.]

I was reading through the smb man page -- and this may be outdated,
but there was a caution on this option:

              Note
              that due to Windows  2000  client  redirector  bugs
              this requires Samba to be running on a 64-bit capa­
              ble operating system such as  IRIX,  Solaris  or  a
              Linux  2.4  kernel.  Can improve performance by 10%
              with Windows 2000 clients. Defaults to off.
----
	1) Are these bugs still present in XP?
	2) If I'm not using the redirector service but the more
standard mounted drive and //sys/mnt, syntax, does the caution
still apply?
	3) Should I assume that 2.4.20 linux on ia32 would have
problems dealing with large file IO?

tnx,
linda