diff --git a/PSSwagger/AssemblyGenerationHelpers.Resources.psd1 b/PSSwagger/AssemblyGenerationHelpers.Resources.psd1
index 9b00b0c..4ff8f77 100644
--- a/PSSwagger/AssemblyGenerationHelpers.Resources.psd1
+++ b/PSSwagger/AssemblyGenerationHelpers.Resources.psd1
@@ -1,11 +1,3 @@
-#########################################################################################
-#
-# Copyright (c) Microsoft Corporation. All rights reserved.
-#
-# Licensed under the MIT license.
-#
-#########################################################################################
-
 ConvertFrom-StringData @'
 ###PSLOC
 
diff --git a/PSSwagger/AssemblyGenerationHelpers.ps1 b/PSSwagger/AssemblyGenerationHelpers.ps1
index 5bbbc01..33dcfb3 100644
--- a/PSSwagger/AssemblyGenerationHelpers.ps1
+++ b/PSSwagger/AssemblyGenerationHelpers.ps1
@@ -1,11 +1,3 @@
-#########################################################################################
-#
-# Copyright (c) Microsoft Corporation. All rights reserved.
-#
-# Licensed under the MIT license.
-#
-#########################################################################################
-
 Microsoft.PowerShell.Core\Set-StrictMode -Version Latest
 Microsoft.PowerShell.Utility\Import-LocalizedData  LocalizedData -FileName AssemblyGenerationHelpers.Resources.psd1
 
diff --git a/PSSwagger/GeneratedHelpers.ps1 b/PSSwagger/GeneratedHelpers.ps1
index 27cc989..ca5fc69 100644
--- a/PSSwagger/GeneratedHelpers.ps1
+++ b/PSSwagger/GeneratedHelpers.ps1
@@ -1,81 +1,5 @@
-#########################################################################################
-#
-# Copyright (c) Microsoft Corporation. All rights reserved.
-#
-# Licensed under the MIT license.
-#
-#########################################################################################
 Microsoft.PowerShell.Core\Set-StrictMode -Version Latest
 
-<#
-.DESCRIPTION
-   Creates AutoRest ServiceClientCredentials for Microsoft Azure using the logged in AzureRM context.
-#>
-function Get-AzServiceCredential
-{
-    [CmdletBinding()]
-    param()
-
-    $AzureContext = & "Get-AzureRmContext" -ErrorAction Stop
-    $authenticationFactory = New-Object -TypeName Microsoft.Azure.Commands.Common.Authentication.Factories.AuthenticationFactory
-    if ((Get-Variable -Name PSEdition -ErrorAction Ignore) -and ('Core' -eq $PSEdition)) {
-        [Action[string]]$stringAction = {param($s)}
-        $serviceCredentials = $authenticationFactory.GetServiceClientCredentials($AzureContext, $stringAction)
-    } else {
-        $serviceCredentials = $authenticationFactory.GetServiceClientCredentials($AzureContext)
-    }
-
-    $serviceCredentials
-}
-
-<#
-.DESCRIPTION
-   Creates delegating handlers for Microsoft Azure generated modules.
-#>
-function Get-AzDelegatingHandler
-{
-    [CmdletBinding()]
-    param()
-
-    New-Object -TypeName System.Net.Http.DelegatingHandler[] 0
-}
-
-<#
-.DESCRIPTION
-   Gets the Azure subscription ID from the logged in AzureRM context.
-#>
-function Get-AzSubscriptionId
-{
-    [CmdletBinding()]
-    param()
-
-    $AzureContext = & "Get-AzureRmContext" -ErrorAction Stop
-    if($AzureContext)
-    {
-        if(Get-Member -InputObject $AzureContext.Subscription -Name SubscriptionId)
-        {
-            return $AzureContext.Subscription.SubscriptionId
-        }
-        else
-        {
-            return $AzureContext.Subscription.Id        
-        }
-    }
-}
-
-<#
-.DESCRIPTION
-   Gets the resource manager URL from the logged in AzureRM context.
-#>
-function Get-AzResourceManagerUrl
-{
-    [CmdletBinding()]
-    param()
-
-    $AzureContext = & "Get-AzureRmContext" -ErrorAction Stop    
-    $AzureContext.Environment.ResourceManagerUrl
-}
-
 <#
 .DESCRIPTION
    Creates a System.Net.Http.HttpClientHandler for the given credentials and sets preauthentication to true.
diff --git a/PSSwagger/New-ArmServiceClient.ps1 b/PSSwagger/New-ArmServiceClient.ps1
new file mode 100644
index 0000000..d21496a
--- /dev/null
+++ b/PSSwagger/New-ArmServiceClient.ps1
@@ -0,0 +1,49 @@
+Microsoft.PowerShell.Core\Set-StrictMode -Version Latest
+
+<#
+.DESCRIPTION
+   Creates Service Client object.
+
+.PARAMETER  FullClientTypeName
+    Client type full name.
+
+.PARAMETER  GlobalParameterHashtable
+    Global parameters to be set on client object.
+#>
+function New-ServiceClient {
+    [CmdletBinding()]
+    param(
+        [Parameter(Mandatory = $true)]
+        [string]
+        $FullClientTypeName,
+
+        [Parameter(Mandatory = $false)]
+        [PSCustomObject]
+        $GlobalParameterHashtable
+    )
+
+    # Azure Powershell way    
+    [Microsoft.Azure.Commands.Common.Authentication.Abstractions.IAzureContext]$Context = Get-AzureRmContext
+    if (-not $Context -or -not $Context.Account) {
+        Write-Error -Message 'Run Login-AzureRmAccount to login.' -ErrorId 'AzureRmContextError'
+        return
+    }
+
+    $Factory = [Microsoft.Azure.Commands.Common.Authentication.AzureSession]::Instance.ClientFactory
+    [System.Type[]]$Types = [Microsoft.Azure.Commands.Common.Authentication.Abstractions.IAzureContext], [string]
+    $CreateArmClientMethod = [Microsoft.Azure.Commands.Common.Authentication.IClientFactory].GetMethod('CreateArmClient', $Types)
+    $ClientType = $FullClientTypeName -as [Type]
+    $ClosedMethod = $CreateArmClientMethod.MakeGenericMethod($ClientType)
+    $Arguments = $Context, [Microsoft.Azure.Commands.Common.Authentication.Abstractions.AzureEnvironment+Endpoint]::ResourceManager
+    $Client = $closedMethod.Invoke($Factory, $Arguments)
+
+    if ($GlobalParameterHashtable) {
+        $GlobalParameterHashtable.GetEnumerator() | ForEach-Object {
+            if ($_.Value -and (Get-Member -InputObject $Client -Name $_.Key -MemberType Property)) {
+                $Client."$($_.Key)" = $_.Value
+            }
+        }    
+    }
+
+    return $Client
+}
\ No newline at end of file
diff --git a/PSSwagger/New-ServiceClient.ps1 b/PSSwagger/New-ServiceClient.ps1
index 1b84c90..276e214 100644
--- a/PSSwagger/New-ServiceClient.ps1
+++ b/PSSwagger/New-ServiceClient.ps1
@@ -23,9 +23,6 @@ Microsoft.PowerShell.Core\Set-StrictMode -Version Latest
     Command should return a custom hostname string.
     Overrides the default host in the specification.
 
-.PARAMETER  SubscriptionIdCommand
-    Custom command get SubscriptionId value.
-
 .PARAMETER  GlobalParameterHashtable
     Global parameters to be set on client object.
 #>
@@ -56,10 +53,6 @@ function New-ServiceClient {
         [string]
         $HostOverrideCommand,
 
-        [Parameter(Mandatory = $false)]
-        [string]
-        $SubscriptionIdCommand,
-
         [Parameter(Mandatory = $false)]
         [PSCustomObject]
         $GlobalParameterHashtable
@@ -90,18 +83,8 @@ function New-ServiceClient {
 
     if ($GlobalParameterHashtable) {
         $GlobalParameterHashtable.GetEnumerator() | ForEach-Object {
-            if (Get-Member -InputObject $Client -Name $_.Key -MemberType Property) {
-                if ((-not $_.Value) -and ($_.Key -eq 'SubscriptionId')) {
-                    if($SubscriptionIdCommand) {
-                        $Client.SubscriptionId = Invoke-Command -ScriptBlock [scriptblock]::Create($SubscriptionIdCommand)
-                    }
-                    else {
-                        $Client.SubscriptionId = Get-AzSubscriptionId
-                    }
-                }
-                else {
-                    $Client."$($_.Key)" = $_.Value
-                }
+            if ($_.Value -and (Get-Member -InputObject $Client -Name $_.Key -MemberType Property)) {
+                $Client."$($_.Key)" = $_.Value
             }    
         }
     }
diff --git a/PSSwagger/PSSwagger.psm1 b/PSSwagger/PSSwagger.psm1
index d0163e4..c4308d4 100644
--- a/PSSwagger/PSSwagger.psm1
+++ b/PSSwagger/PSSwagger.psm1
@@ -613,9 +613,15 @@ function New-PSSwaggerModule
 
     $CopyFilesMap = [ordered]@{
         'GeneratedHelpers.ps1'      = 'GeneratedHelpers.ps1'
-        'Test-CoreRequirements.ps1' = 'Test-CoreRequirements.ps1'
-        'Test-FullRequirements.ps1' = 'Test-FullRequirements.ps1'
-        'New-ServiceClient.ps1'     = 'New-ServiceClient.ps1'
+    }
+    
+    if($UseAzureCsharpGenerator) {
+        $CopyFilesMap['New-ArmServiceClient.ps1'] = 'New-ServiceClient.ps1'
+        $CopyFilesMap['Test-FullRequirements.ps1'] = 'Test-FullRequirements.ps1'
+        $CopyFilesMap['Test-CoreRequirements.ps1'] = 'Test-CoreRequirements.ps1'
+    }
+    else {
+        $CopyFilesMap['New-ServiceClient.ps1'] = 'New-ServiceClient.ps1'        
     }
 
     if (-not $AssemblyFileName) {
diff --git a/PSSwagger/Paths.psm1 b/PSSwagger/Paths.psm1
index a771d0e..208a82d 100644
--- a/PSSwagger/Paths.psm1
+++ b/PSSwagger/Paths.psm1
@@ -616,24 +616,25 @@ function New-SwaggerPath
     }
 
     # Process security section
-    $SubscriptionIdCommand = ""
     $AuthenticationCommand = ""
     $AuthenticationCommandArgumentName = ''
     $hostOverrideCommand = ''
     $AddHttpClientHandler = $false
     $securityParametersToAdd = @()
     $PowerShellCodeGen = $SwaggerMetaDict['PowerShellCodeGen']
-    if (($PowerShellCodeGen['ServiceType'] -eq 'azure') -or ($PowerShellCodeGen['ServiceType'] -eq 'azure_stack')) {
-        $SubscriptionIdCommand = 'Get-AzSubscriptionId'
-    }
-    if ($PowerShellCodeGen['CustomAuthCommand']) {
-        $AuthenticationCommand = $PowerShellCodeGen['CustomAuthCommand']
-    }
-    if ($PowerShellCodeGen['HostOverrideCommand']) {
-        $hostOverrideCommand = $PowerShellCodeGen['HostOverrideCommand']
+
+    # CustomAuthCommand and HostOverrideCommand are not required for Arm Services
+    if (($PowerShellCodeGen['ServiceType'] -ne 'azure') -and ($PowerShellCodeGen['ServiceType'] -eq 'azure_stack')) {
+        if ($PowerShellCodeGen['CustomAuthCommand']) {
+            $AuthenticationCommand = $PowerShellCodeGen['CustomAuthCommand']
+        }
+        if ($PowerShellCodeGen['HostOverrideCommand']) {
+            $hostOverrideCommand = $PowerShellCodeGen['HostOverrideCommand']
+        }
     }
+
     # If the auth function hasn't been set by metadata, try to discover it from the security and securityDefinition objects in the spec
-    if (-not $AuthenticationCommand) {
+    if (-not $AuthenticationCommand -and -not $UseAzureCsharpGenerator) {
         if ($FunctionDetails.ContainsKey('Security')) {
             # For now, just take the first security object
             if ($FunctionDetails.Security.Count -gt 1) {
@@ -729,7 +730,7 @@ function New-SwaggerPath
         }
     }
 
-    if (-not $AuthenticationCommand) {
+    if (-not $AuthenticationCommand -and -not $UseAzureCsharpGenerator) {
         # At this point, there was no supported security object or overridden auth function, so assume no auth
         $AuthenticationCommand = 'Get-AutoRestCredential'
     }
@@ -973,13 +974,18 @@ function New-SwaggerPath
         ParameterGroupsExpressionBlock    = $parameterGroupsExpressionBlock
         SwaggerDict                       = $SwaggerDict
         SwaggerMetaDict                   = $SwaggerMetaDict
-        AddHttpClientHandler              = $AddHttpClientHandler
-        HostOverrideCommand               = $hostOverrideCommand
-        AuthenticationCommand             = $AuthenticationCommand
-        AuthenticationCommandArgumentName = $AuthenticationCommandArgumentName
-        SubscriptionIdCommand             = $SubscriptionIdCommand
         FlattenedParametersOnPSCmdlet     = $flattenedParametersOnPSCmdlet
     }
+    if($AuthenticationCommand) {
+        $functionBodyParams['AuthenticationCommand'] = $AuthenticationCommand
+        $functionBodyParams['AuthenticationCommandArgumentName'] = $AuthenticationCommandArgumentName
+    }
+    if($AddHttpClientHandler) {
+        $functionBodyParams['AddHttpClientHandler'] = $AddHttpClientHandler
+    }    
+    if($hostOverrideCommand) {
+        $functionBodyParams['hostOverrideCommand'] = $hostOverrideCommand
+    }
     if($globalParameters) {
         $functionBodyParams['GlobalParameters'] = $globalParameters
     }
diff --git a/PSSwagger/ServiceTypes/azure.PSMeta.json b/PSSwagger/ServiceTypes/azure.PSMeta.json
index c3de351..ffc184b 100644
--- a/PSSwagger/ServiceTypes/azure.PSMeta.json
+++ b/PSSwagger/ServiceTypes/azure.PSMeta.json
@@ -1,7 +1,5 @@
 {
   "info": {
-    "x-ps-code-generation-settings": {
-		"customAuthCommand": "Get-AzServiceCredential"
-	}
+    "x-ps-code-generation-settings": {}
   }
 }
\ No newline at end of file
diff --git a/PSSwagger/ServiceTypes/azure_stack.PSMeta.json b/PSSwagger/ServiceTypes/azure_stack.PSMeta.json
index 8bcd7a5..ffc184b 100644
--- a/PSSwagger/ServiceTypes/azure_stack.PSMeta.json
+++ b/PSSwagger/ServiceTypes/azure_stack.PSMeta.json
@@ -1,8 +1,5 @@
 {
   "info": {
-    "x-ps-code-generation-settings": {
-		"customAuthCommand": "Get-AzServiceCredential",
-		"hostOverrideCommand": "Get-AzResourceManagerUrl"
-	}
+    "x-ps-code-generation-settings": {}
   }
 }
\ No newline at end of file
diff --git a/PSSwagger/SwaggerUtils.psm1 b/PSSwagger/SwaggerUtils.psm1
index 58f7971..972e810 100644
--- a/PSSwagger/SwaggerUtils.psm1
+++ b/PSSwagger/SwaggerUtils.psm1
@@ -1471,7 +1471,7 @@ function Get-PathFunctionBody
         [string]
         $HostOverrideCommand,
 
-        [Parameter(Mandatory=$true)]
+        [Parameter(Mandatory=$false)]
         [string]
         $AuthenticationCommand,
 
@@ -1479,10 +1479,6 @@ function Get-PathFunctionBody
         [string]
         $AuthenticationCommandArgumentName,
 
-        [Parameter(Mandatory=$false)]
-        [string]
-        $SubscriptionIdCommand,
-
         [Parameter(Mandatory=$true)]
         [PSCustomObject]
         $FlattenedParametersOnPSCmdlet