title: Open readme.txt at end of installatin failed in WiX
body: <p>We would like to open a notepad file at end of the installation. Hence I copied a readme.txt and placed under some local drive during installation then tried to open from that location. But, it is giving "The system cannot find the path specified" issue. However, it was working when I gave the local hard coded path as like "d:\readme.txt".</p>
  
  <pre><code>&lt;Directory Id='ProgramFilesFolder' Name='PFiles'&gt;
     &lt;Directory Id='INSTALLDIR' Name='SimpleMvvmToolkit_2012'&gt;          
     &lt;/Directory&gt;
  &lt;/Directory&gt;
  
  
  &lt;Property Id='NOTEPAD'&gt;Notepad.exe&lt;/Property&gt;
  &lt;CustomAction Id='LaunchFile' Property='NOTEPAD' ExeCommand='[INSTALLDIR]Readme.txt'
                Return='asyncNoWait' /&gt;
  
  &lt;InstallExecuteSequence&gt;
     &lt;Custom Action='LaunchFile' After='InstallFinalize'&gt;NOT Installed&lt;/Custom&gt;
  &lt;/InstallExecuteSequence&gt;
  </code></pre>
  
  <p>Somewhere I did mistake but I couldn't find out exactly. </p>