title: how can I find out the location from where the msi installer is being run
body: <p>Can anyone tell me how can I find out the location from where the msi installer is being run.</p>
  
  <p>For example I have my <code>Sample.msi</code> and Manuals folder in the folder InstallerExample on the Desktop.</p>
  
  <p>I need this information so that I can use it in File/@Source, like the one given below.</p>
  
  <pre><code>&lt;File Id="MyFileId" Name="MyFile" Source="[SourceDir]Manuals" KeyPath="yes" &gt;
  </code></pre>
  
  <p><code>SourceDir</code> should have value <code>C:\Users\bla\Desktop\InstallerExample\Manuals</code></p>
  
  <p>It will be great if anyone can please help me with this.</p>