New-Object System.IO.FileSystemWatcher multiple servers - powershell

Question

I've got a script based on New-Object System.IO.FileSystemWatcher that watches a folder on my home file server for new files, and runs an external app, but now i'm looking to expand on the usage of New-Object System.IO.FileSystemWatcher, to monitor a set of multiple servers (input from a .csv).
I've got the below code working as far as detecting the events, but it generates an alert for a new file multiple times when new files are detected. Any idea how I could get it just generate one alert? I'm thinking it's how my loop is structured?
Any help appreciated!
$Servers = import-csv "C:\Scripts\Servers.csv"
while($true) {
ForEach ($Item in $Servers) {
# Unregister-Event $changed.Id -EA 0
$Server = $($Item.Server)
write-host "Checking \\$Server\c$\Scripts now"
#$folder = "c\Scripts"
$filter = "*.html"
$watcher = New-Object System.IO.FileSystemWatcher
$watcher.Path = "\\$Server\c$\Scripts\"
$watcher.Filter = "*.html"
$watcher.IncludeSubdirectories = $False
$watcher.EnableRaisingEvents = $true
$created = Register-ObjectEvent $watcher "Created" -Action {
write-host "A new file has been created on $Server $($eventArgs.FullPath) -ForegroundColor Green
}
} #ForEach
write-host "Monitoring for new files. Sleeping for 5 seconds"
Start-Sleep -s 5
} #While
Here is the single server version of my script, basically, i want to do the same thing, except running against a bunch of servers:
$SleepTimer = 15
$watcher = New-Object System.IO.FileSystemWatcher
$watcher.Path = "\\FILESERVER\NEWSTUFF\"
$watcher.Filter = "*.html"
$watcher.IncludeSubdirectories = $true
$watcher.EnableRaisingEvents = $true
### DEFINE ACTIONS AFTER A EVENT IS DETECTED
$action = {
$path = $Event.SourceEventArgs.FullPath
$changeType = $Event.SourceEventArgs.ChangeType
$logline = "$changeType, $path"
write-host "$LogLine created"
**RUN EXTERNAL PROGRAM HERE**
add-content -Value $LogLine -path "\\Fileserver\Log.txt"
}
### DECIDE WHICH EVENTS SHOULD BE WATCHED + SET CHECK FREQUENCY
$created = Register-ObjectEvent $watcher "Created" -Action $action
while ($true) {
write-warning "no new files detected. Sleeping for $SleepTimer seconds ..."
start-sleep -s $SleepTimer
}

Answer 1

I think each time the while loop is executing , new file system watcher is created which is generating the multiple alert .which is not happening in your single server version of script
can you check this :
$Servers = import-csv "C:\Scripts\Servers.csv"
ForEach ($Item in $Servers) {
# Unregister-Event $changed.Id -EA 0
$Server = $($Item.Server)
write-host "Checking \\$Server\c$\Scripts now"
#$folder = "c\Scripts"
$filter = "*.html"
$watcher = New-Object System.IO.FileSystemWatcher
$watcher.Path = "\\$Server\c$\Scripts\"
$watcher.Filter = "*.html"
$watcher.IncludeSubdirectories = $False
$watcher.EnableRaisingEvents = $true
$created = Register-ObjectEvent $watcher "Created" -Action {
write-host "A new file has been created on $Server $($eventArgs.FullPath)" -ForegroundColor Green
}
}
while ($true) {
write-host "Monitoring for new files. Sleeping for 5 seconds"
Start-Sleep -s 5
} #While