How to set an environment variable only for Thunderbird?

[pstover]

Assume I want to set an environment variable just for Thunderbird.

It should not be visible outside for other programs.

How can I achieve this?

Peter

[morat]

Try something like:

* Command Prompt

Code: Select all

set Example=Alpha Beta Gamma
thunderbird.exe

* Thunderbird

Code: Select all

// scriptable access to current process environment
var environment = Components.classes["@mozilla.org/process/environment;1"].
  getService(Components.interfaces.nsIEnvironment);
alert(environment.get("Example")); // Alpha Beta Gamma

Set Command
http://ss64.com/nt/set.html

nsIEnvironment Interface
http://developer.mozilla.org/en-US/docs ... nvironment

Edit:

If I then open the firefox.exe process with windows explorer or in another command prompt window, then the "Example" environment variable would be an empty string.

[pstover]

This is exactly what is NOT suitable

As I said in my initial posting: The environment variable should NOT be visible by other prigrams.
If I enter

set Example=Alpha Beta Gamma

It IS visibale by other programs since it is global
So your suggestion does NOT fit.

So I need a file in "profile" folder where to enter the environment variables.

Peter