title: Get "Missing expression after unary operator '-'" when I try to run a Powershell script
body: <p>When I try to run following command</p>
  
  <pre><code>C:\Documents and Settings\BURE\My Documents\ibos\script&gt;powershell.exe  -NoProfile -WindowStyle Hidden &amp; 'C:\Documents and Settings\BURE\My Documents\ibos\script\files_from_nomad.ps1' 1
  </code></pre>
  
  <p>I get following error</p>
  
  <pre><code>Missing expression after unary operator '-'.
  At line:1 char:2
  + - &lt;&lt;&lt;&lt; WindowStyle Hidden
  The filename, directory name, or volume label syntax is incorrect.
  </code></pre>
  
  <p>It works before, but not now?
  Why?</p>
  
  <p>What I try to do is to schadular a script:</p>
  
  <pre><code>schtasks /CREATE /RU BURE /SC MINUTE /TN files_to_nomad   /TR "powershell.exe  -NoProfile -WindowStyle Hidden &amp; 'C:\Documents and Settings\BURE\My Documents\ibos\script\files_to_nomad.ps1' 1"
  </code></pre>
  
  <p>I have exact the same schedular on another computer.</p>