&nbsp;<i></i></div>
<div class="block">Set whether or not you want the process to be spawned.
 Default is not spawned.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>spawn</code> - if true you do not want Ant
              to wait for the end of the process.
              Has no influence in here, the calling task contains
              and acts accordingly</dd><dt><span class="strong">Since:</span></dt>
  <dd>Ant 1.6</dd></dl>
</li>
</ul>
<a name="getEnvironmentVariables()">
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