OWB/OMBPLUS Set a variable externally.

Hello everyone,
Following scenario:
I have created an expert in OWB. This expert does some action with a mapping and publishes the output to a pdf-file. To publish it, I use an executable somewhere in my filesystem.
Now I want to create an installer for this expert. I can use OMBIMPORT to insert the expert to my owb-workspace, but I also need an link to the executable.
Two options I considered:
1 ^st^ : Set a windows environment variable during installation and access it with TCL. This doesn't seem to work because OMBPLUS is started in a Java VM and I can't access the environment variables.
2 ^nd^ : Have a variable in my expert ("my_path"). But how do I set this variable with OMBPLUS-commands? I didn't find a proper command for it yet.
Do you see a solution for my two approaches? Or maybe there is another solution I don't see yet.
Thanks in advance!

Okay, I came a step forward.
I found and took a deeper look into OMBALTER EXPERT.
I tried now:
OMBALTER EXPERT "MY_EXPERT" ADD VARIABLE "MY_PATH" SET PROPERTIES ( VALUE ) VALUES ( "C:\my path\to\executable" )
It doesn't show an error but somehow it doesn't work also.
Hopefully I read the BNF properly..
Does anyone of you have experience using OMBALTER EXPERT? Would be great!

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Edited by: Donna C-Houston on Oct 10, 2012 1:06 PM

Hi Donna,
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I don't want to add a new cgi variable called HOST because HOST sounds so generic and it might interfere with something else running in our environment. Or, I don't want to change the plsql cgi environment variable (such as HTTP_HOST) because many developers may use owa_util.get_cgi_env('HTTP_HOST') to get the current server. If the SERVER_PORT is part of the #HOST# then what could I change it to if it needs to be null. If you leave it blank, then the default SERVER_PORT comes from the CGI variables.The value of HTTP_HOST is wrong anyway and points to your internal web server, but I assume your developers actually want to get the host name of your external web server if they use it to generate absolute URLs. That's why I wouldn't bother and set it to the correct host name.
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My Blog: http://www.inside-oracle-apex.com
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/people/william.cui/blog/2007/02/12/sharing-session-context-between-parent-and-external-windows-running-on-same-host
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I have a extended question to How can I set #HOST# variable referenced in the Chart template?
In addition to the Proxy layer, we are looking to use multiple sub-domain names into the same Oracle APEX instance (through the one DAD) each mapped to a different application id. Therefore I don't think the solution in the link will work for me - as this embeds a single domain name in the DADS.CONF.
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>
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>
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Hi Donna,
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I don't want to add a new cgi variable called HOST because HOST sounds so generic and it might interfere with something else running in our environment. Or, I don't want to change the plsql cgi environment variable (such as HTTP_HOST) because many developers may use owa_util.get_cgi_env('HTTP_HOST') to get the current server. If the SERVER_PORT is part of the #HOST# then what could I change it to if it needs to be null. If you leave it blank, then the default SERVER_PORT comes from the CGI variables.The value of HTTP_HOST is wrong anyway and points to your internal web server, but I assume your developers actually want to get the host name of your external web server if they use it to generate absolute URLs. That's why I wouldn't bother and set it to the correct host name.
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My Blog: http://www.inside-oracle-apex.com
APEX Plug-Ins: http://apex.oracle.com/plugins
Twitter: http://www.twitter.com/patrickwolf

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OWB/OMBPLUS Set a variable externally.

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