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Number   :  4766
Date     :  2003-06-06
Author   :  Kan Yabumoto
Subject  :  Re: /wv0
Size(KB) :  2


Jack wrote:

>Hi,
>Thanks for your reply. I checked those points you suggested. I found no
>discrepancy in my findings.
>The files you indicated that XXCOPY relies on :
>C:\windows\system32\kernel32dll has a date of 8/29/2002 and
>C:\windows\system32\user32.dll has a date of 11/1//2002
>
>I've attached a screen capture of XXCOPY's opening line and the DOS prompt
>to "var".
>In case the jpg files aren't clear they indicate I'm opening XXCOPY v.2.84.0
>and XP v5.1.2600.
>I also downloaded the beta version 2.84.4 and had the same dll message.
>
>I'm probably doing something in error but I can't find it. In any case the
>program works fine with the /wv0 switch set. So thanks for your time.
>
>Cheers, Jack

This is really puzzling. I have already explained this to Jack
via a personal Email, it is worthwhile for everyone to see this.

XXCOPY has a built-in mechanism that generates the following
warning message:

-----------------------------------------------------------
A new Operating System environment is detected.
At least one system DLL has a newer date than XXCOPY
In other words, this program has not been fully tested
in the environment. Run this program at your own risk.
(To suppress this warning, add /WV0 in the command line.)
-----------------------------------------------------------

This is one way that we want to keep XXCOPY users's versions
as uniform (and up-to-date) as possible since answering
questions to old problems which have long been fixed is
really pain in the neck.

XXCOPY upon invocation checks the OS version. When the
following conditions are met, the above warning will be
displayed.

1. If it's Win9X (95/95b/98/98SE/ME), then, it checks to
see if the Windows version number is greater than the
latest known Windows release as of the XXCOPY release
date. The current (v.2.84.x) version checks the Windows
version number against 4.90.3000 (ME's version number).
If the version number is larger, it triggers the warning.

2. If it's WinNT (NT4/2K/XP), then, it checks the Windows
version number against 5.01.2600 (XP's version number).
If the version number is larger, it triggers the warning.

My understanding is that XP SP-1 keeps the same version
number as XP (pre-SP1).

3. In either of the OS families, the compile-time value of
the XXCOPY.EXE file (kept internally and cannot be
manipulated by altering the timestamp) is compared
against the following files:

KERNEL32.DLL
USER32.DLL

These two files are in the C:\windows\system\ (for Win9X)
or in the C:\Windows\system32\ (for NT) directory. They
are key library files that XXCOPY heavily depends upon
for its file access, we want to make sure that XXCOPY is
dealing with "familiar" version.

Based on the mechanism shown above, what Jack is observing
with the current release is a mystery that I cannot explain
(nor do we have a fix other than removing this feature).

Anyone else observe the same warning message?

Kan Yabumoto



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