diff --git a/ReleaseBuilder/Build/Command.Compile.Post.cs b/ReleaseBuilder/Build/Command.Compile.Post.cs
index ab446c704..0b269bac6 100644
--- a/ReleaseBuilder/Build/Command.Compile.Post.cs
+++ b/ReleaseBuilder/Build/Command.Compile.Post.cs
@@ -1,7 +1,4 @@
-using System.IO.Compression;
-using System.Net;
 using System.Text.RegularExpressions;
-using Duplicati.Library.Utility;
 
 namespace ReleaseBuilder.Build;
 
diff --git a/ReleaseBuilder/Build/Command.CreatePackage.cs b/ReleaseBuilder/Build/Command.CreatePackage.cs
index 5089a2770..608736ecf 100644
--- a/ReleaseBuilder/Build/Command.CreatePackage.cs
+++ b/ReleaseBuilder/Build/Command.CreatePackage.cs
@@ -258,7 +258,7 @@ public static partial class Command
             if (File.Exists(binFiles))
                 File.Delete(binFiles);
 
-            File.WriteAllText(binFiles, WixHeatBuilder.CreateWixFilelist(sourceFiles));
+            File.WriteAllText(binFiles, WixHeatBuilder.CreateWixFilelist(sourceFiles, version: rtcfg.ReleaseInfo.Version.ToString()));
 
             var msiArch = target.Arch switch
             {
diff --git a/ReleaseBuilder/Resources/Windows/Duplicati.wxs b/ReleaseBuilder/Resources/Windows/Duplicati.wxs
index 2995fcdd6..1e6a9623e 100644
--- a/ReleaseBuilder/Resources/Windows/Duplicati.wxs
+++ b/ReleaseBuilder/Resources/Windows/Duplicati.wxs
@@ -44,19 +44,19 @@
     <Feature Id="DuplicatiCore" Title="Duplicati core files" Level="1" Description="Installs the required files for Duplicati." AllowAdvertise="no" Absent="disallow" ConfigurableDirectory="INSTALLLOCATION" >
       <Feature Id="DuplicatiDesktopShortCutFeature" Title="Desktop Shortcut" Level="1" Description ="Installs a shortcut to Duplicati on the desktop" Absent="allow" AllowAdvertise="no">
         <ComponentRef Id="DuplicatiDesktopShortcutComponent"/>
-        <!-- <Condition Level="0">FORSERVICE = "true"</Condition> -->
+        <Condition Level="0">FORSERVICE = "true"</Condition>
       </Feature>
 
       <Feature Id="DuplicatiProgramMenuShortCutFeature" Title="Program Menu Shortcut" Level="1" Description ="Installs a shortcut to Duplicati in the Program menu" Absent="allow" AllowAdvertise="no">
         <ComponentRef Id="DuplicatiProgramMenuShortcutComponent"/>
-        <!-- <Condition Level="0">FORSERVICE = "true"</Condition> -->
+        <Condition Level="0">FORSERVICE = "true"</Condition>
       </Feature>
       <ComponentGroupRef Id="DUPLICATIBIN" />
     </Feature>
     
     <Feature Id="DuplicatiStartupShortCutFeature" Title="Launch Duplicati at startup" Level="1" Description ="Automatically launches Duplicati when you log on to the computer" Absent="allow" AllowAdvertise="no">
       <ComponentRef Id="StartupMenuItem"/>
-      <!-- <Condition Level="0">FORSERVICE = "true"</Condition> -->
+      <Condition Level="0">FORSERVICE = "true"</Condition>
     </Feature>
 
     <!-- Launch duplicati setup -->
@@ -68,14 +68,9 @@
     <Property Id="ARPPRODUCTICON" Value="DuplicatiIcon.exe" />
 
     <!-- Remove old versions -->
-    <InstallExecuteSequence>
-      <RemoveExistingProducts Before="InstallInitialize" />
-    </InstallExecuteSequence>
-
-    <Property Id="PREVIOUSVERSIONSINSTALLED" Secure="yes" />
-    <Upgrade Id="$(var.UpgradeCode)">
-      <UpgradeVersion Minimum="2.0.0.0" Property="PREVIOUSVERSIONSINSTALLED"  Maximum="99.0.0.0" IncludeMinimum="yes" IncludeMaximum="no" />
-    </Upgrade>
+  <MajorUpgrade
+      DowngradeErrorMessage="A later version of [ProductName] is already installed"
+      AllowSameVersionUpgrades="yes" />
 
     <Icon Id="DuplicatiIcon.exe" SourceFile="$(var.HarvestPath)Duplicati.GUI.TrayIcon.exe" />
 
diff --git a/ReleaseBuilder/WixHeatBuilder.cs b/ReleaseBuilder/WixHeatBuilder.cs
index 2a27fe091..b5404ffc3 100644
--- a/ReleaseBuilder/WixHeatBuilder.cs
+++ b/ReleaseBuilder/WixHeatBuilder.cs
@@ -15,7 +15,7 @@ public static class WixHeatBuilder
     /// <param name="componentGroupId">The name of the component group</param>
     /// <param name="fileIdGenerator">A function to generate file IDs.</param>
     /// <returns>The wix file xml contents</returns>
-    public static string CreateWixFilelist(string sourceFolder, string folderPrefix = "$(var.HarvestPath)", string directoryRefName = "INSTALLLOCATION", string componentGroupId = "DUPLICATIBIN", Func<string, string>? fileIdGenerator = null)
+    public static string CreateWixFilelist(string sourceFolder, string version, string folderPrefix = "$(var.HarvestPath)", string directoryRefName = "INSTALLLOCATION", string componentGroupId = "DUPLICATIBIN", Func<string, string>? fileIdGenerator = null)
     {
         var itemIds = new Dictionary<string, string>();
         fileIdGenerator ??= (x) => Path.GetRelativePath(sourceFolder, x).Replace("\\", "_").Replace("/", "_").Replace(":", "_").Replace(" ", "_");
@@ -32,9 +32,9 @@ public static class WixHeatBuilder
 
         foreach (var f in Directory.EnumerateFileSystemEntries(sourceFolder))
             if (File.Exists(f))
-                AddFile(doc, directoryRef, f, itemIds, fileIdGenerator, pathTransformer);
+                AddFile(doc, directoryRef, f, version, itemIds, fileIdGenerator, pathTransformer);
             else if (Directory.Exists(f))
-                AddDirectory(doc, directoryRef, f, itemIds, fileIdGenerator, pathTransformer);
+                AddDirectory(doc, directoryRef, f, version, itemIds, fileIdGenerator, pathTransformer);
 
         var fragment2 = doc.CreateElement("Fragment");
         root.AppendChild(fragment2);
@@ -59,9 +59,10 @@ public static class WixHeatBuilder
     /// <param name="doc">The XML document.</param>
     /// <param name="directoryRef">The XML element representing the directory reference.</param>
     /// <param name="file">The file to be added.</param>
+    /// <param name="version">The version of the file.</param>
     /// <param name="itemIds">The dictionary containing the item IDs.</param>
     /// <param name="fileIdGenerator">The function to generate file IDs.</param>
-    private static void AddFile(XmlDocument doc, XmlElement directoryRef, string file, Dictionary<string, string> itemIds, Func<string, string> fileIdGenerator, Func<string, string> pathTransformer)
+    private static void AddFile(XmlDocument doc, XmlElement directoryRef, string file, string version, Dictionary<string, string> itemIds, Func<string, string> fileIdGenerator, Func<string, string> pathTransformer)
     {
         var id = fileIdGenerator.Invoke(file);
         itemIds.Add(file, id);
@@ -74,6 +75,7 @@ public static class WixHeatBuilder
         var fileElement = doc.CreateElement("File");
         fileElement.SetAttribute("Id", id);
         fileElement.SetAttribute("KeyPath", "yes");
+        fileElement.SetAttribute("DefaultVersion", version);
         fileElement.SetAttribute("Source", pathTransformer(file));
         component.AppendChild(fileElement);
     }
@@ -84,9 +86,10 @@ public static class WixHeatBuilder
     /// <param name="doc">The XML document to add the directory to.</param>
     /// <param name="directoryRef">The parent directory reference element.</param>
     /// <param name="dir">The directory path to add.</param>
+    /// <param name="version">The version of the directory.</param>
     /// <param name="itemIds">A dictionary to store the mapping between directory paths and their generated IDs.</param>
     /// <param name="fileIdGenerator">A function to generate file IDs.</param>
-    private static void AddDirectory(XmlDocument doc, XmlElement directoryRef, string dir, Dictionary<string, string> itemIds, Func<string, string> fileIdGenerator, Func<string, string> pathTransformer)
+    private static void AddDirectory(XmlDocument doc, XmlElement directoryRef, string dir, string version, Dictionary<string, string> itemIds, Func<string, string> fileIdGenerator, Func<string, string> pathTransformer)
     {
         var id = fileIdGenerator.Invoke(dir);
 
@@ -97,9 +100,9 @@ public static class WixHeatBuilder
         directoryRef.AppendChild(directory);
 
         foreach (var file in Directory.GetFiles(dir))
-            AddFile(doc, directory, file, itemIds, fileIdGenerator, pathTransformer);
+            AddFile(doc, directory, file, version, itemIds, fileIdGenerator, pathTransformer);
 
         foreach (var subDir in Directory.GetDirectories(dir))
-            AddDirectory(doc, directory, subDir, itemIds, fileIdGenerator, pathTransformer);
+            AddDirectory(doc, directory, subDir, version, itemIds, fileIdGenerator, pathTransformer);
     }
 }
\ No newline at end of file