Get and set Environment variables in C#

 from https://stackoverflow.com/questions/185208/how-do-i-get-and-set-environment-variables-in-c

var value = System.Environment.GetEnvironmentVariable(variable [, Target])

and

System.Environment.SetEnvironmentVariable(variable, value [, Target])

a.bat

set TOOLID=TEST

set INIPATH=D:\work\

CALL AAUtility.exe

C#

            //Environment.SetEnvironmentVariable("TOOLID", @"TEST");

           //Environment.SetEnvironmentVariable("INIPATH", @"D:\work\");

            TOOLID = System.Environment.GetEnvironmentVariable("TOOLID");

            iniPath = System.Environment.GetEnvironmentVariable("INIPATH");