title: Find references of Path Variables used in ISM file
body: <p>I have one ISM file created using Installshield. In Path Variables Explorer, I can see some variables defined. How can find if they are used anywhere in the ISM ? I want to remove variables if they are unused.</p>
  
  <p>I am using Installshield 11.5 Adminstudio.</p>
  
  <p>Thanks in Advance.</p>
  
  <p>---Sambhaji</p>