title: powershell: get-winevent has no message data?
body: <p>When I run the script below to retrieve log files, the get-winevent "message" field is blank, but has data if I run get-eventlog. Any ideas why?</p>
  
  <pre><code>#has message data 
  Get-Eventlog -LogName application -Newest 10
  
   #date 10 days ago 
  $EventStartDate = get-date("10 May 2012") 
  $EventEndDate = get-date("11 May 2012") 
  $EventLogNames = @("Application", "system")
  
  #critea for winevent 
  $EventCritea = @{logname = $EventLogNames; StartTime=$EventStartDate; EndTime=$EventEndDate}
  
  #Retrieves the event log 
  $RetreivedEvents = Get-WinEvent -computername localhost -FilterHashtable $EventCritea
  $RetreivedEvents | fl id, logname, MachineName, Message, TimeCreated
  </code></pre>