I haven&#39;t done something similar to what you are trying to do, but at first glance i see a space standing between vector’  and END.<br><br>Did  you try replacing the space with %20?<br><br>Just a thought :).<br><br><div class="gmail_quote">
On 11 December 2010 14:49, Jeff McKenna <span dir="ltr">&lt;<a href="mailto:jmckenna@gatewaygeomatics.com">jmckenna@gatewaygeomatics.com</a>&gt;</span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
<div class="im">On 10-12-10 5:57 PM, myOpenLayersUName wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<br>
And, maybe I have, but now I’m completely stuck. At this point, I have the<br>
following URL:<br>
<br>
<a href="http://localhost/cgi-bin/mapserv.exe?map=/ms4w/apps/testing/dynamic.map&amp;map.layer[line]=DATA" target="_blank">http://localhost/cgi-bin/mapserv.exe?map=/ms4w/apps/testing/dynamic.map&amp;map.layer[line]=DATA</a><br>

‘id3/vector’ END&amp;layers=line&amp;mode=map<br>
<br>
<br>
And it is giving me this error: getString(): Symbol definition error.<br>
Parsing error near (‘):(line 1)<br>
<br>
</blockquote>
<br></div>
Quick note:<br>
<br>
That error usually occurs when there is a problem with the syntax of your CGI query string.  There are notes on that at: <a href="http://www.mapserver.org/cgi/controls.html#changing-map-file-parameters-via-a-form-or-a-url" target="_blank">http://www.mapserver.org/cgi/controls.html#changing-map-file-parameters-via-a-form-or-a-url</a><br>

<br>
My experience is that that error doesn&#39;t refer to a problem in your mapfile, but refers to a problem with the way you are calling mapserv.exe<br>
<br>
Others can hopefully assist you more thoroughly :)<br>
<br>
-jeff<br><font color="#888888">
<br>
-- <br>
Jeff McKenna<br>
MapServer Consulting and Training Services<br>
<a href="http://www.gatewaygeomatics.com/" target="_blank">http://www.gatewaygeomatics.com/</a></font><div><div></div><div class="h5"><br>
<br>
<br>
<br>
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</div></div></blockquote></div><br>