@variable and Operating system variables (Windows environment variables)

Hi,
Has anyone experience with using @variable and Operating system variables (Windows environment variables)in XI 3.x Web Intelligence ?
Help gives the example of @Variable(NUMBER_OF_PROCESSORS). Even with syntax correction @Variable('NUMBER_OF_PROCESSORS') it does not seem to work.
It works fine for Desktop Intelligence. Environment variables added are read, after restarting DeskI. If already in an existing DeskI session, newly added (unknown) variable names give a prompt with the variable as prompt text as a result. This is the behavior in Web Intelligence, even for environment variables that are always set (like Path, TMP, ...)
Both WebI Rich Client and WebI via Infoview in XI 3.1 and XI 3.1 SP2 show this behavior (prompt instead of @variable behavior)
Are there settings that need to be made? other syntax ?
Is this a DeskI only feature ?
Thanks!
Raf
Edited by: Raf on Oct 30, 2009 3:44 PM

Hi Abdellatif,
Ok, that would clarify things.
You have an idea if this is documented somewhere?
Reason we ask:the "xi3-1_designer_en" guide, the specification for the @variable function states:
"BusinessObjects system variables. ...
Report variables. ...
Operating system variables. You can enter Windows environment variables in order to obtain information about your installation.
Custom variables. With Desktop Intelligence, you can use a predefined text file to provide a list of fixed variable values."
There's no explicit referal to DeskI only for OS system variables, like there is for custom variables.
Thanks!
Raf

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