Get Environment variables..

Namespaces:

using System;
using System.Management;

Code:

static void Main(string[] args)
{
WqlObjectQuery query = new WqlObjectQuery("Select * from Win32_Environment");

ManagementObjectSearcher find = new ManagementObjectSearcher(query);

Console.WriteLine("Description - Name - User Name - Value");

foreach (ManagementObject mo in find.Get())
{

Console.WriteLine(mo["Description"] + " - " + mo["Name"] + " - " + mo["UserName"] + " - " + mo["VariableValue"]);
}
}