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It is true that XML schemas are meant as a way to have an XML way to
describe the grammar of a class of documents instead of using the DTD
syntax for that. But to say that DTDs are no longer popular goes to far
in my view.

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As you are asking in a Microsoft newsgroup I will point out to some
deprecated stuff in terms of support by MSXML and .NET. Before the W3C
specified W3C XML schemas (XSD schemas as described here
<http://www.w3.org/TR/xmlschema-0/>) Microsoft had developed and
implemented so called XDR schemas but by now the preferred schema
language is W3C XSD schemas and I think .NET 2.0's new XML parser does
no longer support validation against XDR schemas.

--

Martin Honnen --- MVP XML

XML is a huge area with so many related technologies, xpath,xsl, etc,
have any been deprecated or replaced with something better? For example,
I believe that DTD's are no longer popular (although my tiny mind has
already forgotten the new sexier way of specifying a schema).
As you can tell, it's not an area I'm overly familar with. I'm looking
at some greenfield projects so I'd rather concentrate on what is
currently considered good practice.

Many thanks.

Cheers, that's exactly the sort of thing I'm after.