How to set FileSystemWatcher powershell script to exclude folders within the root path being monitored?

Question

All,
I want to use a pre-fab script to monitor the OS folders on a Windows 2008 R2 Domain Controller and send any changes into the Event Log.  But there are two folders in the file path I want to exclude because changes to them would fill up the Event Logs
too quickly.  Thus, I want to monitor all folder in C:\Windows but want to exclude C:\Windows\Temp and C:\Windows\debug.
The script I want to use is below.
#This script uses the .NET FileSystemWatcher class to monitor file events in folder(s).
#The advantage of this method over using WMI eventing is that this can monitor sub-folders.
#The -Action parameter can contain any valid Powershell commands. 
I have just included two for example.
#The script can be set to a wildcard filter, and IncludeSubdirectories can be changed to $true.
#You need not subscribe to all three types of event.  All three are shown for example.
# Version 1.1
$folder = 'C:\Windows' # Enter the root path you want to monitor.
$filter = '*.*'  # You can enter a wildcard filter here.
# In the following line, you can change 'IncludeSubdirectories to $true if required.                          
$fsw = New-Object IO.FileSystemWatcher $folder, $filter -Property @{IncludeSubdirectories = $true;NotifyFilter = [IO.NotifyFilters]'FileName, LastWrite'}
# Here, all three events are registerd.  You need only subscribe to events that you need:
Register-ObjectEvent $fsw Created -SourceIdentifier FileCreated -Action {
$name = $Event.SourceEventArgs.Name
$changeType = $Event.SourceEventArgs.ChangeType
$timeStamp = $Event.TimeGenerated
Write-Host "The file '$name' was $changeType at $timeStamp" -fore green
Out-File -FilePath c:\scripts\filechange\outlog.txt -Append -InputObject "The file '$name' was $changeType at $timeStamp"}
Register-ObjectEvent $fsw Deleted -SourceIdentifier FileDeleted -Action {
$name = $Event.SourceEventArgs.Name
$changeType = $Event.SourceEventArgs.ChangeType
$timeStamp = $Event.TimeGenerated
Write-Host "The file '$name' was $changeType at $timeStamp" -fore red
Out-File -FilePath c:\scripts\filechange\outlog.txt -Append -InputObject "The file '$name' was $changeType at $timeStamp"}
Register-ObjectEvent $fsw Changed -SourceIdentifier FileChanged -Action {
$name = $Event.SourceEventArgs.Name
$changeType = $Event.SourceEventArgs.ChangeType
$timeStamp = $Event.TimeGenerated
Write-Host "The file '$name' was $changeType at $timeStamp" -fore white
Out-File -FilePath c:\scripts\filechange\outlog.txt -Append -InputObject "The file '$name' was $changeType at $timeStamp"}
# To stop the monitoring, run the following commands:
# Unregister-Event FileDeleted
# Unregister-Event FileCreated
# Unregister-Event FileChanged
Is there a command line I can use to exclude thos two folders?
Thanks

Answer 1

First, thank you to everyone who has been helping me.  I've gotten a little bit further in what I need to do.  I still have two problems that I really need help in sorting out:
1. The script will run on Windows 7 with no errors but will not run on a Server 2008 R2 Domain Controller.  On the DC, I get an error for the SourceIdentifier:  "A parameter cannot be found that mataches parameter name 'SourceIdentifier'."
2. Even though the script runs on Windows 7 with no errors, I tested it by making changes to the Temp and debug folders and the changes were still being recorded in the logs.
A copy of the updated script I am running is below:
#This script uses the .NET FileSystemWatcher class to monitor file events in folder(s).
#The advantage of this method over using WMI eventing is that this can monitor sub-folders.
#The -Action parameter can contain any valid Powershell commands.  I have just included two for example.
#The script can be set to a wildcard filter, and IncludeSubdirectories can be changed to $true.
#You need not subscribe to all three types of event.  All three are shown for example.
# Version 1.1
$folder = 'C:\Windows' # Enter the root path you want to monitor.
$filter = '*.*'  # You can enter a wildcard filter here.
# In the following line, you can change 'IncludeSubdirectories to $true if required.                          
$fsw = New-Object IO.FileSystemWatcher $folder, $filter -Property @{IncludeSubdirectories = $true;NotifyFilter = [IO.NotifyFilters]'FileName, LastWrite'}
# Here, all three events are registerd.  You need only subscribe to events that you need:
$Script:excludedItems = 'C:\Windows\Temp','C:\Windows\debug'
Register-ObjectEvent $fsw Created -SourceIdentifier FileCreated -Action {
If ($excludedItems -notcontains $Event.SourceEventArgs.Name) {
$name = $Event.SourceEventArgs.Name
$changeType = $Event.SourceEventArgs.ChangeType
$timeStamp = $Event.TimeGenerated
Write-Host "The file '$name' was $changeType at $timeStamp" -fore green
Out-File -FilePath c:\scripts\filechange\outlog.txt -Append -InputObject "The file '$name' was $changeType at $timeStamp"} }
Register-ObjectEvent $fsw Deleted -SourceIdentifier FileDeleted -Action {
If ($excludedItems -notcontains $Event.SourceEventArgs.Name) {
$name = $Event.SourceEventArgs.Name
$changeType = $Event.SourceEventArgs.ChangeType
$timeStamp = $Event.TimeGenerated
Write-Host "The file '$name' was $changeType at $timeStamp" -fore red
Out-File -FilePath c:\scripts\filechange\outlog.txt -Append -InputObject "The file '$name' was $changeType at $timeStamp"} }
Register-ObjectEvent $fsw Changed -SourceIdentifier FileChanged -Action {
If ($excludedItems -notcontains $Event.SourceEventArgs.Name) {
$name = $Event.SourceEventArgs.Name
$changeType = $Event.SourceEventArgs.ChangeType
$timeStamp = $Event.TimeGenerated
Write-Host "The file '$name' was $changeType at $timeStamp" -fore white
Out-File -FilePath c:\scripts\filechange\outlog.txt -Append -InputObject "The file '$name' was $changeType at $timeStamp"} }
# To stop the monitoring, run the following commands:
# Unregister-Event FileDeleted
# Unregister-Event FileCreated
# Unregister-Event FileChanged
Thanks in advance for any help you can give.