McGraw, Joanne wrote:
LAYER NAME "ecozones" DATA "ecozones"

#    CONNECTION "/ms4w_1.4.0/Apache/htdocs/dev1/data/ecozones.shp" #
CONNECTIONTYPE OGR #    DATA "SELECT * FROM ecozones"

: END

In the browser, when I enter the following URL with the above definition,
the image appears fine: http://host/cgi-bin/mapserv?map=/server_path/Apache/htdocs/map_nojoin.map&mode=map&layer=ecozones


However, if I comment the 'DATA "ecozones"' line and uncomment the lines
referring to OGR, the image displays correctly from a Windows server; so,
I'm fairly confident the syntax in the file is fine. But, the same map file
(with a different path to the ecozones.shp file obviously) gives the
"Premature end of script headers" error.

Any pointers as to how I can identify what is causing the error are greatly
appreciated. I'm stuck!

Joanne,

You might want to try "shp2img" on your map file as it will generally give
you better error messages.  In fact, I usually see specific messages for
missing shared libraries in my Apache error_log, so I'm surprised you don't
see more details.  Perhaps an old OGR (libgdal.so) is getting picked up
in your case and this is causing a crash without details.

Good luck,
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