DOCBOOK-APPS: Weirdness with SGML_CATALOG_FILES for xsltproc underWindows

Running xsltproc under Windows, I've already discovered the 
peculiarity of the syntax you have to use in order for xsltproc to 
successfully locate a catalog file (file:///d:/path/to/file.soc). 
Now I've discovered that xsltproc will only recognize the catalog 
file, in this format, if it is the _last_ in the list of 
directories specified in SGML_CATALOG_FILES. If it helps, here is 
the entire contents of SGML_CATALOG_FILES:

c:\sp\pubtext\xml.soc;D:\Data\DTDs\docbook\docbook.soc;D:\Data\DTDs
\xhtml1\xhtml.soc;d:\data\dtds\featureset\featureset.soc;d:\data\dt
ds\xslt1.1 
xslt.soc;file:///d:/data/dtds/xslt1.1/xslt.soc;file:///d:/data/dtds
/featureset/featureset.soc;file:///D:/Data/DTDs/docbook/docbook.soc

This is a real pain as it means anytime I want to use a different 
dtd I have to edit the variable. Any suggestions would be most welcome.

Many thanks!

Philip Glaser
Principal and Software Architect
Sustainable Software Solutions, LLC

www.sustainsoft.com
973-951-9522