Altova Mailing List Archives

Re: msxml 3.0 or 4.0

From: Martin Honnen <mahotrash@-----.-->
Date: 10/28/2005 1:29:00 PM

iwaan wrote:

> I little bit confused by parallel supporting by Microsoft 3.0 and 4.0
> version of msxml. In August 2005 they offer SP7 for 3.0 while latest
> service pack for 4.0 was at the beginning of 2004. And I don't know
> which version is better to choose as a base for my project. Previosly I
> assumed 4.0 is better, but now it seems they tend to support 3.0
> version and smoothly close 4.0 project. May anybody clear the situation
> for me?

If you (currently) want the fastest XSLT/XPath implementation and/or if 
you want W3C XSD schema support then choose MSXML 4 instead of MSXML 3.
MSXML 3 is needed and used by IE (by IE 6 by default and if installed 
additionally also by IE 5 and IE 5.5) to support XSLT 1.0 and XPath 1.0.
MSXML 4 is not backwards compatible to some features IE uses and thus it 
is not meant as an replacement for MSXML 3 but rather as a separate 
version with lack of some non standard features not many need any more 
but improved performance and additional support for XSD schemas.

So it depends on what you need and whether you want to distribute an 
MSXML version with your application perhaps, for instance if you know 
any machines your application will be distributed to have IE 6 then you 
know that MSXML 3 is installed and perhaps do not need to distribute 
MSXML with your app if MSXML suffices for your needs.

See also
for more information about different features.


	Martin Honnen --- MVP XML


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