diff --git a/windows/win_iis_webbinding.ps1 b/windows/win_iis_webbinding.ps1
index bdff43fc63c..dfd9cdb958b 100644
--- a/windows/win_iis_webbinding.ps1
+++ b/windows/win_iis_webbinding.ps1
@@ -23,42 +23,35 @@
 
 $params = Parse-Args $args;
 
-# Name parameter
-$name = Get-Attr $params "name" $FALSE;
-If ($name -eq $FALSE) {
-    Fail-Json (New-Object psobject) "missing required argument: name";
-}
-
-# State parameter
-$state = Get-Attr $params "state" $FALSE;
-$valid_states = ($FALSE, 'present', 'absent');
-If ($state -NotIn $valid_states) {
-  Fail-Json $result "state is '$state'; must be $($valid_states)"
-}
+$name = Get-AnsibleParam $params -name "name" -failifempty $true
+$state = Get-AnsibleParam $params "state" -default "present" -validateSet "present","absent"
+$host_header = Get-AnsibleParam $params -name "host_header"
+$protocol = Get-AnsibleParam $params -name "protocol"
+$port = Get-AnsibleParam $params -name "port"
+$ip = Get-AnsibleParam $params -name "ip"
+$certificatehash = Get-AnsibleParam $params -name "certificate_hash" -default $false
+$certificateStoreName = Get-AnsibleParam $params -name "certificate_store_name" -default "MY"
 
 $binding_parameters = New-Object psobject @{
   Name = $name
 };
 
-If ($params.host_header) {
-  $binding_parameters.HostHeader = $params.host_header
+If ($host_header) {
+  $binding_parameters.HostHeader = $host_header
 }
 
-If ($params.protocol) {
-  $binding_parameters.Protocol = $params.protocol
+If ($protocol) {
+  $binding_parameters.Protocol = $protocol
 }
 
-If ($params.port) {
-  $binding_parameters.Port = $params.port
+If ($port) {
+  $binding_parameters.Port = $port
 }
 
-If ($params.ip) {
-  $binding_parameters.IPAddress = $params.ip
+If ($ip) {
+  $binding_parameters.IPAddress = $ip
 }
 
-$certificateHash = Get-Attr $params "certificate_hash" $FALSE;
-$certificateStoreName = Get-Attr $params "certificate_store_name" "MY";
-
 # Ensure WebAdministration module is loaded
 if ((Get-Module "WebAdministration" -ErrorAction SilentlyContinue) -eq $null){
   Import-Module WebAdministration
@@ -98,12 +91,12 @@ try {
     # Select certificat
     if($certificateHash -ne $FALSE) {
 
-      $ip = $binding_parameters.IPAddress
+      $ip = $binding_parameters["IPAddress"]
       if((!$ip) -or ($ip -eq "*")) {
         $ip = "0.0.0.0"
       }
 
-      $port = $binding_parameters.Port
+      $port = $binding_parameters["Port"]
       if(!$port) {
         $port = 443
       }
diff --git a/windows/win_scheduled_task.ps1 b/windows/win_scheduled_task.ps1
index 7d409050ae9..6490d5562c3 100644
--- a/windows/win_scheduled_task.ps1
+++ b/windows/win_scheduled_task.ps1
@@ -24,29 +24,27 @@ $ErrorActionPreference = "Stop"
 
 $params = Parse-Args $args;
 
-$days_of_week = Get-Attr $params "days_of_week" $null;
-$enabled = Get-Attr $params "enabled" $true | ConvertTo-Bool;
-$description = Get-Attr $params "description" " ";
-$path = Get-Attr $params "path" $null;
-$argument = Get-Attr $params "argument" $null;
+$days_of_week = Get-AnsibleParam $params -anem "days_of_week"
+$enabled = Get-AnsibleParam $params -name "enabled" -default $true
+$enabled = $enabled | ConvertTo-Bool
+$description = Get-AnsibleParam $params -name "description" -default " "
+$path = Get-AnsibleParam $params -name "path"
+$argument = Get-AnsibleParam $params -name "argument"
 
 $result = New-Object PSObject;
 Set-Attr $result "changed" $false;
 
 #Required vars
-$name = Get-Attr -obj $params -name name -failifempty $true -resultobj $result
-$state = Get-Attr -obj $params -name state -failifempty $true -resultobj $result
-if( ($state -ne "present") -and ($state -ne "absent") ) {
-    Fail-Json $result "state must be present or absent"
-}
+$name = Get-AnsibleParam -obj $params -name name -failifempty $true -resultobj $result
+$state = Get-AnsibleParam -obj $params -name state -failifempty $true -resultobj $result -validateSet "present","absent"
 
 #Vars conditionally required
-if($state -eq "present") {
-    $execute = Get-Attr -obj $params -name execute -failifempty $true -resultobj $result
-    $frequency = Get-Attr -obj $params -name frequency -failifempty $true -resultobj $result
-    $time = Get-Attr -obj $params -name time -failifempty $true -resultobj $result
-    $user = Get-Attr -obj $params -name user -failifempty $true -resultobj $result
-}
+$present_args_required = $state -eq "present"
+$execute = Get-AnsibleParam -obj $params -name execute -failifempty $present_args_required  -resultobj $result
+$frequency = Get-AnsibleParam -obj $params -name frequency -failifempty $present_args_required -resultobj $result
+$time = Get-AnsibleParam -obj $params -name time -failifempty $present_args_required -resultobj $result
+$user = Get-AnsibleParam -obj $params -name user -failifempty $present_args_required -resultobj $result
+
 
 # Mandatory Vars
 if ($frequency -eq "weekly")
@@ -59,7 +57,7 @@ if ($frequency -eq "weekly")
 
 if ($path)
 {
-  $path = "\{0}\" -f $params.path
+  $path = "\{0}\" -f $path
 }
 else
 {
@@ -70,7 +68,7 @@ try {
     $task = Get-ScheduledTask -TaskPath "$path" | Where-Object {$_.TaskName -eq "$name"}
 
     # Correlate task state to enable variable, used to calculate if state needs to be changed
-    $taskState = $task.State
+    $taskState = if ($task) { $task.State } else { $null }
     if ($taskState -eq "Ready"){
         $taskState = $true
     }
diff --git a/windows/win_webpicmd.ps1 b/windows/win_webpicmd.ps1
index 3bef13f6574..a8624739d7c 100644
--- a/windows/win_webpicmd.ps1
+++ b/windows/win_webpicmd.ps1
@@ -25,14 +25,7 @@ $params = Parse-Args $args;
 $result = New-Object PSObject;
 Set-Attr $result "changed" $false;
 
-If ($params.name)
-{
-    $package = $params.name
-}
-Else
-{
-    Fail-Json $result "missing required argument: name"
-}
+$package = Get-AnsibleParam $params -name "name" -failifempty $true
 
 Function Find-Command
 {