Re: How do you create and set environment variables?

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From: Stoitcho Goutsev \(100\) [C# MVP] (100_at_100.com)
Date: 02/06/04 

Date: Fri, 6 Feb 2004 15:03:50 -0500

Hi Ron,
You cannot change the invironment on already running process.
The set of envirnoment variables can be only changed upon process creation.

About the EnvironmentVariables property. The property itself is readonly
because it returns StringDictionary (collection) and you cannot set a new
collection. But you can modify (add, delete, change) its content.
Once you compose the set of environment variables you start the new process
using that ProcessStartInfo.
When the process is up and running no one can change its environment except
the process itself. 

-- 
B\rgds
100
"Ron Clarke" <ron.clarke@hp.com> wrote in message
news:u38U3SO7DHA.1672@TK2MSFTNGP12.phx.gbl...
> Thanks, but I've already looked there. Unless the documentation is wrong,
> you can only get the values, you cannot set them.
> For example, the ProcessStartInfo.EnvironmentVariables property is defined
> this way:
> public StringDictionary EnvironmentVariables {get;}
>
> I could get some variables and modify the dictionary contents, but then
how
> do I get them back into the environment if the property does allow a
"set"?
> For something that should be so simple, there must be a way to do it!
>
> Thanks in advance,
> Ron
>
>
>
> "Stoitcho Goutsev (100) [C# MVP]" <100@100.com> wrote in message
> news:uGqxi6N7DHA.2560@TK2MSFTNGP09.phx.gbl...
> > Hi Ron,
> > Take a look at Process and ProcessStartInfo classes. Using
> ProcessStartInfo
> > you can set envionment variables.
> > Each process has its own set of envirnment variables so, you don't have
to
> > remove yours when the process terminates
> >
> > -- 
> > HTH
> > B\rgds
> > 100
> >
> > "Ron Clarke" <ron.clarke@hp.com> wrote in message
> > news:OKObiaN7DHA.2044@TK2MSFTNGP10.phx.gbl...
> > > I have an application that starts other processes. The app needs to
> > > create/set a few environment variables when a process starts, let the
> > > process run, then remove the environment variables when the process
> > > terminates. Looking through the C# and .NET docs, I've found how to
get
> > > environment variables, but not how to create and set them. I found the
> > > EnvironmentPermissions class which grants access, but that's not
enough.
> > > Can anyone help me here; the functionality must be out there
somewhere!
> > > Thanks.
> > >
> > >
> >
> >
>
>

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