Thanks Jeff; that info helped greatly with no longer chasing dead ends.  I was 
hoping I'd be able to say I got it working, but after trying several things 
including setting the CURL_CA_BUNDLE file as an IIS FastCGI variable, it still 
isn't working.  Our next step will be switching to the MS4W distribution of 
MapServer; just have to get through our busy season here before we make that 
switch.  Thanks for the info!

John

-----Original Message-----

Date: Thu, 9 Jun 2022 07:12:43 -0300
From: Jeff McKenna <jmcke...@gatewaygeomatics.com>
To: mapserver-users@lists.osgeo.org
Subject: Re: [mapserver-users] External WMS issue
Message-ID:
        <eaf28648-9f88-78c3-7871-3099b49ab...@gatewaygeomatics.com>
Content-Type: text/plain; charset=UTF-8; format=flowed

Hi John,

There is a long-standing issue on Windows systems where environment variables 
are not able to be accessed, by the FOSS4G software stack.  To work around this 
for MS4W users, I set that CURL_CA_BUNDLE manually all throughout the MS4W 
stack, instead of through an environment variable.
(the upcoming MapServer 8 release will include a config file where we can also 
set this instead)  I also set CURL_CA_BUNDLE in MS4W's Apache http server.  All 
of those manual sets have basically eliminated the hundreds of reports I'd get 
weekly of that variable not being read, from MS4W users.

Hope that helps (this issue is not discussed often publicly, but trust me, it 
unfortunately exists).

-jeff




--
Jeff McKenna
GatewayGeo: Developers of MS4W, MapServer Consulting and Training co-founder of 
FOSS4G 
http://gatewaygeo.com/__;!!G6MNE2S8Nw!m2E3pCPSkq3ylKyH5eWJpbtQNsvt9xTyIIK4JKyfRB5ko9scuSYLPr6TQHNmYrVHw1Z-sPgh1S_ry0Hi0Ny3VII6ZbEP_RHe$


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