diff --git a/Notes.md b/Notes.md
index 50de052..24cc975 100644
--- a/Notes.md
+++ b/Notes.md
@@ -213,4 +213,13 @@ Get-VM -ComputerName Server1
 
 ```powershell
 Connect-VIServer
-```
\ No newline at end of file
+```
+
+
+## Snapshot
+
+https://developer.vmware.com/docs/powercli/latest/products/vmwarevsphereandvsan/categories/snapshot/
+
+Find hosts, iterate with domains?
+
+$Hostname+.domain.dom
\ No newline at end of file
diff --git a/Testing/with_middleware.ps1 b/Testing/with_middleware.ps1
index c0565cb..d237077 100644
--- a/Testing/with_middleware.ps1
+++ b/Testing/with_middleware.ps1
@@ -1,5 +1,5 @@
 # Author: Oriol Filter
-# Date: 08/04/2022
+# Date: 09/04/2022
 
 
 $DebugPreference = "Continue"
@@ -12,39 +12,90 @@ $HOSTS_FILE = "$SCRIPT_PATH/hosts.txt"
 
 
 ## Add Vhost objects for each type of server
-class VirtualVM{
+class VirtualMachine
+{
     [VirtualizationServer]$__ServerObject
     [Object]$__VMObject
-    [VirtualizationServer]Get_ServerObject(){
+    [VirtualizationServer]Get_ServerObject()
+    {
         return $this.__ServerObject
     }
-    Set_ServerObject([VirtualizationServer] $Server){
+
+    Set_ServerObject([VirtualizationServer] $Server)
+    {
         [VirtualizationServer] $this.__ServerObject=$Server
     }
-    Set_VMObject([Object] $object){
+
+    Set_VMObject([Object] $object)
+    {
         $this.__VMObject=$object
     }
-    [Object]Get_VMObject(){
+
+    [Object]Get_VMObject()
+    {
         return $this.__VMObject.PowerState
     }
 
-    [String]Get_Name(){
+    [String]Get_Name()
+    {
         return $this.__ServerObject.Name
     }
-    [bool]Get_Is_Running(){
-        return @{PoweredOn=$true;PoweredOff=$false}[$this.__VMObject.PowerState]
+
+    [bool]__Get_Is_Running()
+    {
+        $type=$this.GetType().BaseType
+        Write-Warning "Get_Is_Running not implemented in type $type"
+        return $false
+    }
+    [bool]Get_Is_Running()
+    {
+        return $this.__Get_Is_Running()
     }
 
+    [Object]__Get_Snapshots()
+    {
+        $type=$this.GetType().BaseType
+        Write-Warning "Get_Snapshots not implemented in type $type"
+        return $null
+    }
+    [Object]Get_Snapshots()
+    {
+        return $this.__Get_Snapshots
+    }
 
 }
 
-class SCVMM_VM:VirtualVM{
-
+class VM_SCVMM:VirtualMachine
+{
+    [bool]__Get_Name()
+    {
+        return  $this.__ServerObject.Name
+    }
+    [bool]__Get_Is_Running(){
+        return @{"PoweredOn"=$true;"PoweredOff"=$false}[$this.__VMObject.VirtualMachineState]
+    }
 }
 
-class VirtualizationServer {
-    [int]$port=8100
+class VM_VMWare:VirtualMachine
+{
+    [bool]
+    __Get_Name()
+    {
+        return  $this.__ServerObject.Name
+    }
+    [bool]
+    __Get_Is_Running()
+    {
+        return @{ "PoweredOn" = $true; "PoweredOff" = $false }[$this.__VMObject.PowerState]
+    }
+}
+
+class VirtualizationServer
+{
+    [VirtualMachine]$__vm_obj=[VirtualMachine]
+    [int]$port=""
     [string]$url=""
+    [Array] $__host_list=@()
     #     [Boolean] _FindHost ($vname) {
     #         $type=$this.GetType().BaseType
     #         Write-Host "Find Host not implemented in type $type"
@@ -53,6 +104,12 @@ class VirtualizationServer {
     #     [Boolean] FindHost ($vname) {
     #         return $this._FindHost($vname)
     #     }
+    [VirtualMachine]__create_vm([Object]$item){
+        [VirtualMachine]$new_vm=$this.__vm_obj::new()
+        $new_vm.__ServerObject=$this
+        $new_vm.__VMObject=$item
+        return $new_vm
+    }
 
     __load_hosts(){
         $type=$this.GetType().BaseType
@@ -60,41 +117,48 @@ class VirtualizationServer {
     }
 
     load_hosts(){
-        [String]::Format("Loading VM from: {0}",$this.url) | Write-Debug
         $this.__host_list=@()
+        [String]::Format("Loading VM from: {0}",$this.url) | Write-Debug
         $this.__load_hosts()
+        [String]::Format("Loaded {1} VM from: {0}",$this.url,$this.__host_list.Length) | Write-Debug
     }
 
-    [Array] $__host_list=@()
     [Array] get_host_list(){
         return $this.__host_list
     }
+
     [Boolean] __check_login(){
         $type=$this.GetType().BaseType
         Write-Warning "Check_login not implemented in type $type"
         return $false
     }
+
     [Boolean] check_login(){
         Invoke-Command -ComputerName $this.url { $true }
         return $this.check_login()
     }
+
 }
 
-class SystemCenterVirtualMachineManager: VirtualizationServer {
-    __load_hosts(){
+class SystemCenterVirtualMachineManager: VirtualizationServer
+{
+    __load_hosts()
+    {
         Get-SCVMMServer -ComputerName $this.url
         $list = Get-SCVirtualMachine
         $this.__host_list=$list
-        #        [string]::Format("Loaded {0} VM from {1}",$list.Lenght,$this.url) | Write-Debug
     }
-    [Boolean] __check_login($url){
+    [Boolean] __check_login($url)
+    {
         $result=Invoke-Command -ComputerName $this.url { $true }
         $status_message = "OK"
         return $result
     }
 }
-class HypervisorServer: VirtualizationServer{
-    [Boolean] __log_in($url){
+class HypervisorServer: VirtualizationServer
+{
+    [Boolean] __log_in($url)
+    {
         $result=Invoke-Command -ComputerName $this.url { $true }
         $status_message = "OK"
         return $result
@@ -116,13 +180,23 @@ class HypervisorServer: VirtualizationServer{
     #         return $result
     #     }
 }
-class VMWareServer: VirtualizationServer{}
+class VMWareServer: VirtualizationServer
+{
+    __load_hosts()
+    {
+        Connect-VIServer -Server $this.url
+        $list = Get-SCVirtualMachine
+        $this.__host_list=$list
+    }
+}
 
-class VirtualizerManager{
+class VirtualizerManager
+{
 
 }
 
-class VirtualizerMiddleware{
+class VirtualizerMiddleware
+{
     [Array]$__connected_servers=@()
     [Hashtable]$__found_host_dict=@{}
     [Boolean] __log_in($url){
@@ -192,7 +266,6 @@ class VirtualizerMiddleware{
                 foreach ($entry_from_dict in $entry_from_list.GetEnumerator())
                 {
                     $server_location = $entry_from_dict.Name
-                    $vm = $entry_from_dict.Value
                     [String]::Format("`t`tFound in {0}", $server_location) | Write-Host
                 }
                 Write-Host "`-----------`n"
diff --git a/placeholder.md b/placeholder.md
index 7166491..ceae2bc 100644
--- a/placeholder.md
+++ b/placeholder.md
@@ -56,38 +56,4 @@ Get-Command -Module hyper-v | Out-GridView
 
 ##### Niputis
 
-https://livebook.manning.com/book/windows-powershell-in-action-third-edition/chapter-2/40
-
-# At the authentication side.
-was considering something like
-
-
-## Background login
-for (object in auth_list){
-    if (can_do_backround_login){
-        try{
-            object.login_ended=False
-            check_login() # Emphasis on sending it to the background
-        }
-        catch $error {
-            finally.login_ended=True
-        }
-    }
-}
-
-## Front login
-for (object in auth_list){
-    try{
-        object.login_ended=False
-        check_login() # Emphasis on sending it to the background
-    }
-    catch $error {
-        finally.login_ended=True
-    }
-}
-
-
-
-While (there is something that still has login_ended=False){
-    wait
-}
\ No newline at end of file
+https://livebook.manning.com/book/windows-powershell-in-action-third-edition/chapter-2/40
\ No newline at end of file