How to have two versions of the same application installed on the same PC?
<p>I have two versions of the same application. I want to install them to the same PC. When I install I get the error : </p>

<blockquote>
  <p>Another version of this product is already installed.  Installation of this version cannot continue.  To configure or remove the existing version of this product, use Add/Remove Programs on the Control Panel.</p>
</blockquote>

<p>Is there something I can do in the version settings?</p>
