Tune remainder of Initialize-ADTModule for performance.

Module initialisation now occurs in ~0.5 seconds.

PowerShell 5:
```
[2025-11-30T13:39:56.7150854+11:00] [Initialization] [Open-ADTSession] [Info] :: [PSAppDeployToolkit] module imported in [0.9259279] seconds.
[2025-11-30T13:39:56.7150854+11:00] [Initialization] [Open-ADTSession] [Info] :: [PSAppDeployToolkit] module initialized in [0.5725523] seconds.
```

PowerShell 7:
```
[2025-11-30T13:38:25.8503548+11:00] [Initialization] [Open-ADTSession] [Info] :: [PSAppDeployToolkit] module imported in [0.9905205] seconds.
[2025-11-30T13:38:25.8520642+11:00] [Initialization] [Open-ADTSession] [Info] :: [PSAppDeployToolkit] module initialized in [0.467705] seconds.
```

Author: mjr4077au

src/PSAppDeployToolkit/Private/Get-ADTClientServerUser.ps1

@@ -53,7 +53,7 @@ function Private:Get-ADTClientServerUser
     }
     else
     {
-        Get-ADTRunAsActiveUser 4>$null
+        Get-ADTRunAsActiveUser
     }
 
     # Return the calculated RunAsActiveUser if we have one.

src/PSAppDeployToolkit/Private/Get-ADTRunAsActiveUser.ps1

@@ -54,21 +54,17 @@ function Private:Get-ADTRunAsActiveUser
 
     # Determine the account that will be used to execute client/server commands in the user's context.
     # Favour the caller's session if it's found and is currently an active user session on the device.
-    Write-ADTLogEntry -Message 'Finding the active user session on this device.'
     foreach ($session in $userSessions)
     {
         if ($session.SID.Equals([PSADT.AccountManagement.AccountUtilities]::CallerSid) -and $session.IsActiveUserSession)
         {
-            Write-ADTLogEntry -Message "The active user session on this device is [$($session.NTAccount)]."
             return $session.ToRunAsActiveUser()
         }
     }
 
     # The caller SID isn't the active user session, try to find the best available match.
     if ($session = $userSessions | & { process { if ($_.IsActiveUserSession) { return $_ } } } | Sort-Object -Property LogonTime -Descending | Select-Object -First 1)
     {
-        Write-ADTLogEntry -Message "The active user session on this device is [$($session.NTAccount)]."
         return $session.ToRunAsActiveUser()
     }
-    Write-ADTLogEntry -Message 'There was no active user session found on this device.'
 }

src/PSAppDeployToolkit/Private/New-ADTEnvironmentTable.ps1

@@ -290,13 +290,13 @@ function Private:New-ADTEnvironmentTable
     $variables.Add('IsNetworkServiceAccount', $variables.CurrentProcessSID.IsWellKnown([System.Security.Principal.WellKnownSidType]::NetworkServiceSid))
     $variables.Add('IsServiceAccount', ($variables.CurrentProcessToken.Groups -contains ([System.Security.Principal.SecurityIdentifier]'S-1-5-6')))
     $variables.Add('IsProcessUserInteractive', [System.Environment]::UserInteractive)
-    $variables.Add('LocalSystemNTAccount', (ConvertTo-ADTNTAccountOrSID -WellKnownSIDName LocalSystemSid -WellKnownToNTAccount -LocalHost 4>$null).Value)
-    $variables.Add('LocalUsersGroup', (ConvertTo-ADTNTAccountOrSID -WellKnownSIDName BuiltinUsersSid -WellKnownToNTAccount -LocalHost 4>$null).Value)
-    $variables.Add('LocalAdministratorsGroup', (ConvertTo-ADTNTAccountOrSID -WellKnownSIDName BuiltinAdministratorsSid -WellKnownToNTAccount -LocalHost 4>$null).Value)
+    $variables.Add('LocalSystemNTAccount', [PSADT.AccountManagement.AccountUtilities]::GetWellKnownSid([System.Security.Principal.WellKnownSidType]::LocalSystemSid).Translate([System.Security.Principal.NTAccount]))
+    $variables.Add('LocalUsersGroup', [PSADT.AccountManagement.AccountUtilities]::GetWellKnownSid([System.Security.Principal.WellKnownSidType]::BuiltinUsersSid).Translate([System.Security.Principal.NTAccount]))
+    $variables.Add('LocalAdministratorsGroup', [PSADT.AccountManagement.AccountUtilities]::GetWellKnownSid([System.Security.Principal.WellKnownSidType]::BuiltinAdministratorsSid).Translate([System.Security.Principal.NTAccount]))
     $variables.Add('SessionZero', $variables.IsLocalSystemAccount -or $variables.IsLocalServiceAccount -or $variables.IsNetworkServiceAccount -or $variables.IsServiceAccount)
 
     ## Variables: Logged on user information
-    $variables.Add('LoggedOnUserSessions', [System.Collections.Generic.IReadOnlyList[PSADT.TerminalServices.SessionInfo]][System.Collections.ObjectModel.ReadOnlyCollection[PSADT.TerminalServices.SessionInfo]][PSADT.TerminalServices.SessionInfo[]](Get-ADTLoggedOnUser 4>$null))
+    $variables.Add('LoggedOnUserSessions', [System.Collections.Generic.IReadOnlyList[PSADT.TerminalServices.SessionInfo]][PSADT.TerminalServices.SessionManager]::GetSessionInfo())
     if ($variables.LoggedOnUserSessions)
     {
         $variables.Add('usersLoggedOn', [System.Collections.Generic.IReadOnlyList[System.Security.Principal.NTAccount]][System.Collections.ObjectModel.ReadOnlyCollection[System.Security.Principal.NTAccount]][System.Security.Principal.NTAccount[]]$variables.LoggedOnUserSessions.NTAccount)

src/PSAppDeployToolkit/Public/Complete-ADTFunction.ps1

@@ -52,5 +52,8 @@ function Complete-ADTFunction
     )
 
     # Write debug log messages and restore original global verbosity if a value was archived off.
-    Write-ADTLogEntry -Message 'Function End' -Source $Cmdlet.MyInvocation.MyCommand.Name -DebugMessage
+    if ($InformationPreference -notmatch '^(SilentlyContinue|Ignore)$')
+    {
+        Write-ADTLogEntry -Message 'Function End' -Source $Cmdlet.MyInvocation.MyCommand.Name -DebugMessage
+    }
 }

src/PSAppDeployToolkit/Public/Initialize-ADTFunction.ps1

@@ -89,15 +89,18 @@ function Initialize-ADTFunction
     $ErrorActionPreference = [System.Management.Automation.ActionPreference]::Stop
 
     # Write debug log messages.
-    Write-ADTLogEntry -Message 'Function Start' -Source $Cmdlet.MyInvocation.MyCommand.Name -DebugMessage
-    if ($Cmdlet.MyInvocation.BoundParameters.Count)
+    if ($InformationPreference -notmatch '^(SilentlyContinue|Ignore)$')
     {
-        $CmdletBoundParameters = $Cmdlet.MyInvocation.BoundParameters | Format-Table -Property @{ Label = 'Parameter'; Expression = { "[-$($_.Key)]" } }, @{ Label = 'Value'; Expression = { $_.Value }; Alignment = 'Left' }, @{ Label = 'Type'; Expression = { if ($_.Value) { $_.Value.GetType().Name } }; Alignment = 'Left' } -AutoSize -Wrap | Out-String -Width ([System.Int32]::MaxValue)
-        Write-ADTLogEntry -Message "Function invoked with bound parameter(s):`n$CmdletBoundParameters" -Source $Cmdlet.MyInvocation.MyCommand.Name -DebugMessage
-    }
-    else
-    {
-        Write-ADTLogEntry -Message 'Function invoked without any bound parameters.' -Source $Cmdlet.MyInvocation.MyCommand.Name -DebugMessage
+        Write-ADTLogEntry -Message 'Function Start' -Source $Cmdlet.MyInvocation.MyCommand.Name -DebugMessage
+        if ($Cmdlet.MyInvocation.BoundParameters.Count)
+        {
+            $CmdletBoundParameters = $Cmdlet.MyInvocation.BoundParameters | Format-Table -Property @{ Label = 'Parameter'; Expression = { "[-$($_.Key)]" } }, @{ Label = 'Value'; Expression = { $_.Value }; Alignment = 'Left' }, @{ Label = 'Type'; Expression = { if ($_.Value) { $_.Value.GetType().Name } }; Alignment = 'Left' } -AutoSize -Wrap | Out-String -Width ([System.Int32]::MaxValue)
+            Write-ADTLogEntry -Message "Function invoked with bound parameter(s):`n$CmdletBoundParameters" -Source $Cmdlet.MyInvocation.MyCommand.Name -DebugMessage
+        }
+        else
+        {
+            Write-ADTLogEntry -Message 'Function invoked without any bound parameters.' -Source $Cmdlet.MyInvocation.MyCommand.Name -DebugMessage
+        }
     }
 
     # Amend the caller's $ErrorActionPreference to archive off their provided value so we can always stop on a dime.

src/PSAppDeployToolkit/Public/Initialize-ADTModule.ps1

@@ -85,7 +85,7 @@ function Initialize-ADTModule
             }
             $PSCmdlet.ThrowTerminatingError((New-ADTErrorRecord @naerParams))
         }
-        Initialize-ADTFunction -Cmdlet $PSCmdlet -SessionState $ExecutionContext.SessionState
+        Initialize-ADTFunction -Cmdlet $PSCmdlet -SessionState $ExecutionContext.SessionState -InformationAction SilentlyContinue
         $null = $PSBoundParameters.Remove('ScriptDirectory')
     }
 
@@ -160,6 +160,6 @@ function Initialize-ADTModule
 
     end
     {
-        Complete-ADTFunction -Cmdlet $PSCmdlet
+        Complete-ADTFunction -Cmdlet $PSCmdlet -InformationAction SilentlyContinue
     }
 }