title: Define multiple environment variables for debug in Visual C++
body: <p>I want to debug a program in Visual C++ that depends on two environment variables.</p>
  
  <p>I know how to define one variable (<em>Properties</em> → <em>Configuration Properties</em> → <em>Debug</em> → <em>Environment</em>), but I am having problems defining two variables. 
  I have tried to separate them with <code>\</code> and <code>|</code>, but it didn't work.</p>