[Unattended answer file] Add Starter Script files

Author: CodingWonders

DISMTools.vbproj

@@ -1201,6 +1201,7 @@
     <None Include="docs\css\fonts\Roboto-Slab-Regular.woff2" />
     <None Include="docs\search\search_index.json" />
     <None Include="docs\sitemap.xml.gz" />
+    <None Include="Elements\AutoUnattend\StarterScripts\WhenFirstUserLogsOn\Set up a custom wallpaper.dtss" />
     <None Include="Helpers\dthelper.bat">
       <CopyToOutputDirectory>Always</CopyToOutputDirectory>
     </None>
@@ -1876,6 +1877,8 @@
   </ItemGroup>
   <ItemGroup>
     <Folder Include="bin\Debug\" />
+    <Folder Include="Elements\AutoUnattend\StarterScripts\DuringSystemConfiguration\" />
+    <Folder Include="Elements\AutoUnattend\StarterScripts\WhenUsersLogOnForFirstTime\" />
     <Folder Include="Helpers\extps1\PE_Helper\files\diskpart\" />
     <Folder Include="Helpers\extps1\PE_Helper\tools\HotInstall\" />
     <Folder Include="Panels\Set_Ops\" />
@@ -2004,6 +2007,9 @@ IF EXIST "$(SolutionDir)tour" (
 IF NOT EXIST AutoUnattend (
 	md AutoUnattend
 	copy /y "$(SolutionDir)Elements\AutoUnattend\*.xml" AutoUnattend
+	IF EXIST "$(ProjectDir)Elements\AutoUnattend\StarterScripts" (
+		xcopy "$(ProjectDir)Elements\AutoUnattend\StarterScripts\*.*" AutoUnattend\StarterScripts /cehyi
+	)
 )
 
 IF %25ISPREVIEW%25=="Yes" (

Elements/AutoUnattend/StarterScripts/WhenFirstUserLogsOn/Set up a custom wallpaper.dtss

@@ -0,0 +1,24 @@
+Language: PowerShell
+
+Add-Type -Language CSharp -TypeDefinition @"
+    using System;
+    using System.Runtime.InteropServices;
+
+    public class WinAPI {
+        [DllImport("user32.dll", CharSet = CharSet.Auto)]
+        public static extern int SystemParametersInfo(int uAction, int uParam, string lpvParam, int fuWinIni);
+    }
+"@
+
+$SPI_SETDESKWALLPAPER = 0x0014          # This sets the desktop wallpaper
+$SPIF_UPDATEINIFILE = 0x01              # This writes the change to the user profile
+$SPIF_SENDCHANGE = 0x02                 # This broadcasts a WM_SETTINGCHANGE message
+
+# More information about the SystemParametersInfo API:
+# https://learn.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-systemparametersinfoa
+
+# NOTE: the wallpaper path must be either an absolute path or a relative path to the picture
+# file in **the target Windows installation**. DO NOT PUT A PATH TO YOUR CURRENT WALLPAPER IF
+# IT DOESN'T EXIST ON THE TARGET INSTALLATION. If the file does not exist, you will see a
+# black desktop background.
+[WinAPI]::SystemParametersInfo($SPI_SETDESKWALLPAPER, 0, "<path to your wallpaper here>", $SPIF_UPDATEINIFILE -bor $SPIF_SENDCHANGE)