title: How to redirect a url only with specific parameters in IIS
body: <p>I have a url that looks like this:</p>
  
  <pre><code>www.mywebsite.com/page.aspx?code=1.a
  </code></pre>
  
  <p>I want to redirect this URL via IIS to:</p>
  
  <pre><code>www.mywebsite.com/page.aspx?code=1.b
  </code></pre>
  
  <p>I would like to do this through IIS and not within the code.</p>
  
  <p>I have various other website urls that look like:</p>
  
  <pre><code>www.mywebsite.com/page.aspx?code=2
  www.mywebsite.com/page.aspx?code=3.a
  www.mywebsite.com/page.aspx?code=6.c
  </code></pre>
  
  <p>I don't want these to be affected.</p>
  
  <p>Thanks.</p>