Here is my solution for the Beginner Event 7
Here we had to create a logging solution for script
   1: # ------------------------------------------------------------------------
       2: # NAME: ReplaceWordInWord.ps1
       3: # ------------------------------------------------------------------------
       4:  
    5: $mypath = "c:\temp\test.doc"
6: $logfile = "c:\temp\logfile.txt"
7: #first we will see if the logfile exists
   8: $exists = Test-Path c:\temp\logfile.txt
       9:     
    10: if ($exists -eq $true) {
  11:         Remove-Item C:\temp\logfile.txt
      12:         }
    13: New-Item -path c:\temp\ -Name logfile.txt -type "file" #Create the logfile
  14:  
    15: "$(get-date) -- Created Log file: $logfile" | Out-File `
  16:     -Encoding ascii -Append $logfile
      17:  
    18: $objWord = New-Object -ComObject word.application
19: $objWord.Visible = $True
20: "$(get-date) -- We have launched word" | Out-File `
  21:     -Encoding ascii -Append $logfile
      22:  
      23: $objDoc = $objWord.Documents.Open($mypath)
    24: "$(get-date) -- We have the document" | Out-File `
  25:     -Encoding ascii -Append $logfile
      26:  
      27: $objSelection = $objWord.Selection
    28: $FindText = "mispelled"
29: $ReplaceText = "spelled incorrectly"
30: "$(get-date) -- Replacing '$FindText' with '$ReplaceText'" | Out-File `
  31:     -Encoding ascii -Append $logfile
      32:  
      33: $ReplaceAll = 2
      34: $FindContinue = 1
    35: $MatchCase = $False
36: $MatchWholeWord = $True
37: $MatchWildcards = $False
38: $MatchSoundsLike = $False
39: $MatchAllWordForms = $False
40: $Forward = $True
  41: $Wrap = $FindContinue
    42: $Format = $False
  43:  
    44: "$(get-date) -- Executing command" | Out-File -Encoding ascii -Append $logfile
  45:  
      46: $objSelection.Find.Execute($FindText,$MatchCase,
      47:   $MatchWholeWord,$MatchWildcards,$MatchSoundsLike,
      48:   $MatchAllWordForms,$Forward,$Wrap,$Format,
      49:   $ReplaceText,$ReplaceAll)
      50:  
    51: "$(get-date) -- Replace text complete" | Out-File `
  52:     -Encoding ascii -Append $logfile