diff --git a/.gitignore b/.gitignore
index 7b420ff..5ec2528 100644
--- a/.gitignore
+++ b/.gitignore
@@ -23,3 +23,5 @@ LiteXL*
 !resources/windows/*.diff
 !resources/windows/*.exe.manifest.in
 !resources/macos/*.py
+!scripts/innosetup/lite-xl@*.bmp
+!scripts/innosetup/lite-xl-banner@*.bmp
diff --git a/scripts/innosetup/innosetup.iss.in b/scripts/innosetup/innosetup.iss.in
index d2d8fbf..98ba798 100644
--- a/scripts/innosetup/innosetup.iss.in
+++ b/scripts/innosetup/innosetup.iss.in
@@ -9,7 +9,7 @@
 ; Use /dArch option to create a setup for a different architecture, e.g.:
 ; iscc /dArch=x86 innosetup.iss
 #ifndef Arch
-  #define Arch "x64"
+  #define Arch "x64compatible"
 #endif
 
 [Setup]
@@ -26,24 +26,26 @@ AppPublisherURL={#MyAppURL}
 AppSupportURL={#MyAppURL}
 AppUpdatesURL={#MyAppURL}
 
-#if Arch=="x86"
+#if Pos("x86", Arch) != 0
   #define ArchInternal "i686"
 #else
   ArchitecturesAllowed={#Arch}
   ArchitecturesInstallIn64BitMode={#Arch}
-  #if Arch=="x64"
+  #if Pos("x64", Arch) != 0
     #define ArchInternal "x86_64"
-  #elif Arch=="arm64"
+  #elif Pos("arm64", Arch) != 0
     #define ArchInternal "aarch64"
   #endif
 #endif
 
 AllowNoIcons=yes
-Compression=lzma
+Compression=lzma2
 SolidCompression=yes
 DefaultDirName={autopf}/{#MyAppName}
 DefaultGroupName={#MyAppPublisher}
 UninstallFilesDir={app}
+WizardStyle=modern
+AlwaysShowDirOnReadyPage=yes
 
 ; Uncomment the following line to run in non administrative install mode
 ; (install for current user only.)
@@ -56,21 +58,45 @@ UsedUserAreasWarning=no
 
 OutputDir=.
 OutputBaseFilename=LiteXL-{#MyAppVersion}-{#ArchInternal}-setup
-;DisableDirPage=yes
+DisableDirPage=no
 ;DisableProgramGroupPage=yes
 
 LicenseFile={#SourceDir}/LICENSE
 SetupIconFile={#SourceDir}/resources/icons/icon.ico
-WizardImageFile="{#SourceDir}/scripts/innosetup/wizard-modern-image.bmp"
-WizardSmallImageFile="{#SourceDir}/scripts/innosetup/litexl-55px.bmp"
+UninstallDisplayIcon={app}\{#MyAppExeName}, 0
+
+; Get a list of icons for different DPIs
+#define WizardIconPath = SourceDir + "/scripts/innosetup/"
+#define FinalIconPath ""
+#define FindHandle
+#define FindResult
+#for {FindHandle = FindResult = FindFirst(WizardIconPath + "lite-xl@*.bmp", 0); FindResult; FindResult = FindNext(FindHandle)} \
+  Insert(FinalIconPath, 0, WizardIconPath + FindGetFileName(FindHandle) + ",")
+#if FindHandle
+  #expr FindClose(FindHandle)
+#endif
+WizardSmallImageFile="{#FinalIconPath}"
+
+; Get a list of banners for different DPIs (FIXME: figure out how to reuse this code?)
+#define FinalBannerPath ""
+#for {FindHandle = FindResult = FindFirst(WizardIconPath + "lite-xl-banner@*.bmp", 0); FindResult; FindResult = FindNext(FindHandle)} \
+  Insert(FinalBannerPath, 0, WizardIconPath + FindGetFileName(FindHandle) + ",")
+#if FindHandle
+  #expr FindClose(FindHandle)
+#endif
+WizardImageFile="{#FinalBannerPath}"
+
+; Required for the add to path option to refresh environment
+ChangesEnvironment=yes
 
 [Languages]
 Name: "english"; MessagesFile: "compiler:Default.isl"
 
 [Tasks]
 Name: "desktopicon"; Description: "{cm:CreateDesktopIcon}"; GroupDescription: "{cm:AdditionalIcons}"; Flags: unchecked
-Name: "quicklaunchicon"; Description: "{cm:CreateQuickLaunchIcon}"; GroupDescription: "{cm:AdditionalIcons}"; Flags: unchecked; OnlyBelowVersion: 6.1; Check: not IsAdminInstallMode
-Name: "portablemode"; Description: "Portable Mode"; Flags: unchecked
+Name: "quicklaunchicon"; Description: "{cm:CreateQuickLaunchIcon}"; GroupDescription: "{cm:AdditionalIcons}"; Flags: unchecked; OnlyBelowVersion: 6.2; Check: not IsAdminInstallMode
+Name: "portablemode"; Description: "Extract only, do not install"; Flags: unchecked
+Name: "envPath"; Description: "Add Lite XL to PATH"; Flags: unchecked
 
 [Files]
 Source: "{#SourceDir}/lite-xl/*"; DestDir: "{app}"; Flags: ignoreversion recursesubdirs
@@ -83,8 +109,91 @@ Name: "{group}\{cm:UninstallProgram,{#MyAppName}}"; Filename: "{uninstallexe}";
 Name: "{userappdata}\Microsoft\Internet Explorer\Quick Launch\{#MyAppName}"; Filename: "{app}\{#MyAppExeName}"; Tasks: quicklaunchicon; Check: not WizardIsTaskSelected('portablemode')
 ; Name: "{usersendto}\{#MyAppName}"; Filename: "{app}\{#MyAppExeName}"
 
+[Registry]
+Root: "HKA"; Subkey: "Software\Classes\*\shell\{#MyAppName}"; ValueType: string; ValueName: ""; ValueData: "Open with {#MyAppName}"; Flags: uninsdeletekey
+Root: "HKA"; Subkey: "Software\Classes\*\shell\{#MyAppName}"; ValueType: string; ValueName: "Icon"; ValueData: "{app}\{#MyAppExeName}, 0"; Flags: uninsdeletekey
+Root: "HKA"; Subkey: "Software\Classes\*\shell\{#MyAppName}\command"; ValueType: string; ValueName: ""; ValueData: """{app}\{#MyAppExename}""  ""%1"""; Flags: uninsdeletekey
+Root: "HKA"; Subkey: "Software\Classes\directory\shell\{#MyAppName}"; ValueType: string; ValueName: ""; ValueData: "Open with {#MyAppName}"; Flags: uninsdeletekey
+Root: "HKA"; Subkey: "Software\Classes\directory\shell\{#MyAppName}"; ValueType: string; ValueName: "Icon"; ValueData: "{app}\{#MyAppExeName}, 0"; Flags: uninsdeletekey
+Root: "HKA"; Subkey: "Software\Classes\directory\shell\{#MyAppName}\command"; ValueType: string; ValueName: ""; ValueData: """{app}\{#MyAppExename}""  ""%1"""; Flags: uninsdeletekey
+Root: "HKA"; Subkey: "Software\Classes\directory\background\shell\{#MyAppName}"; ValueType: string; ValueName: ""; ValueData: "Open with {#MyAppName}"; Flags: uninsdeletekey
+Root: "HKA"; Subkey: "Software\Classes\directory\background\shell\{#MyAppName}"; ValueType: string; ValueName: "Icon"; ValueData: "{app}\{#MyAppExeName}, 0"; Flags: uninsdeletekey
+Root: "HKA"; Subkey: "Software\Classes\directory\background\shell\{#MyAppName}\command"; ValueType: string; ValueName: ""; ValueData: """{app}\{#MyAppExename}""  ""%V"""; Flags: uninsdeletekey
+
 [Run]
 Filename: "{app}/{#MyAppExeName}"; Description: "{cm:LaunchProgram,{#StringChange(MyAppName, '&', '&&')}}"; Flags: nowait postinstall skipifsilent
 
 [Setup]
 Uninstallable=not WizardIsTaskSelected('portablemode')
+
+; Code to add installation path to environment taken from:
+; https://stackoverflow.com/a/46609047
+[Code]
+const SystemKey = 'SYSTEM\CurrentControlSet\Control\Session Manager\Environment';
+const UserKey = 'Environment';
+const SystemHive = HKEY_LOCAL_MACHINE;
+const UserHive = HKEY_CURRENT_USER;
+
+procedure EnvAddPath(Path: string);
+var
+  SystemPath: string;
+  UserPath: string;
+  R: boolean;
+begin
+  { Retrieve user and system PATH }
+  if not RegQueryStringValue(SystemHive, SystemKey, 'Path', SystemPath)
+  then SystemPath := '';
+  if not RegQueryStringValue(UserHive, UserKey, 'Path', UserPath)
+  then UserPath := '';
+
+  { Skip if the string is found in user / system path }
+  if Pos(';' + Uppercase(Path) + ';', ';' + Uppercase(UserPath) + ';' + Uppercase(SystemPath) + ';') > 0 then exit;
+
+  { Add the environment variable to user or system PATH depending on installation mode }
+  if IsAdminInstallMode() then R := RegWriteStringValue(SystemHive, SystemKey, 'Path', SystemPath + ';' + Path + ';')
+  else R := RegWriteStringValue(UserHive, UserKey, 'Path', UserPath + ';' + Path + ';');
+
+  { Log any issues }
+  if R then Log(Path + ' is added to PATH')
+  else Log('Cannot add ' + Path + ' to PATH');
+end;
+
+procedure EnvRemovePath(Path: string);
+var
+  RegKeys: array of string;
+  RegHives: array of integer;
+  Paths: string;
+  I: integer;
+  P: integer;
+begin
+  { During uninstallation, we always have administrator privileges }
+  RegKeys := [SystemKey, UserKey];
+  RegHives := [SystemHive, UserHive];
+  { Remove the path from both user and system PATH }
+  for I := 0 to Length(RegKeys) - 1 do
+    begin
+      { Skip if registry key doesn't exist }
+      if not RegQueryStringValue(RegHives[I], RegKeys[I], 'Path', Paths) then continue;
+      { Skip if path is not in PATH }
+      P := Pos(';' + Uppercase(Path) + ';', ';' + Uppercase(Paths) + ';');
+      if p = 0 then continue;
+      { Remove string from PATH }
+      Delete(Paths, P - 1, Length(Path) + 1);
+      { Write to the environment variable }
+      if RegWriteStringValue(RegHives[I], RegKeys[I], 'Path', Paths)
+      then Log(Path + ' is removed from PATH')
+      else Log('Error removing ' + Path + ' from PATH');
+    end;
+end;
+
+procedure CurStepChanged(CurStep: TSetupStep);
+begin
+  if (CurStep = ssPostInstall) and WizardIsTaskSelected('envPath')
+  then EnvAddPath(ExpandConstant('{app}'));
+end;
+
+procedure CurUninstallStepChanged(CurUninstallStep: TUninstallStep);
+begin
+  if CurUninstallStep = usPostUninstall
+  then EnvRemovePath(ExpandConstant('{app}'));
+end;
diff --git a/scripts/innosetup/innosetup.sh b/scripts/innosetup/innosetup.sh
index 86ab89d..0c32055 100644
--- a/scripts/innosetup/innosetup.sh
+++ b/scripts/innosetup/innosetup.sh
@@ -31,11 +31,11 @@ main() {
 
   case "$MSYSTEM" in
     MINGW64|UCRT64|CLANG64)
-    arch=x64
+    arch=x64compatible
     arch_file=x86_64
     ;;
     MINGW32|CLANG32)
-    arch=x86
+    arch=x86compatible
     arch_file=i686
     ;;
     CLANGARM64)
diff --git a/scripts/innosetup/lite-xl-banner@164x314.bmp b/scripts/innosetup/lite-xl-banner@164x314.bmp
new file mode 100644
index 0000000..ba93404
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diff --git a/scripts/innosetup/lite-xl-banner@192x386.bmp b/scripts/innosetup/lite-xl-banner@192x386.bmp
new file mode 100644
index 0000000..46289c9
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diff --git a/scripts/innosetup/lite-xl-banner@246x459.bmp b/scripts/innosetup/lite-xl-banner@246x459.bmp
new file mode 100644
index 0000000..66b0820
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diff --git a/scripts/innosetup/lite-xl-banner@273x556.bmp b/scripts/innosetup/lite-xl-banner@273x556.bmp
new file mode 100644
index 0000000..19cf794
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diff --git a/scripts/innosetup/lite-xl-banner@328x604.bmp b/scripts/innosetup/lite-xl-banner@328x604.bmp
new file mode 100644
index 0000000..9a953f9
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diff --git a/scripts/innosetup/lite-xl@110x106.bmp b/scripts/innosetup/lite-xl@110x106.bmp
new file mode 100644
index 0000000..7932a7a
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diff --git a/scripts/innosetup/lite-xl@55x55.bmp b/scripts/innosetup/lite-xl@55x55.bmp
new file mode 100644
index 0000000..9d8190b
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diff --git a/scripts/innosetup/lite-xl@64x68.bmp b/scripts/innosetup/lite-xl@64x68.bmp
new file mode 100644
index 0000000..fc0dcd5
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diff --git a/scripts/innosetup/lite-xl@83x80.bmp b/scripts/innosetup/lite-xl@83x80.bmp
new file mode 100644
index 0000000..0e067de
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diff --git a/scripts/innosetup/lite-xl@92x97.bmp b/scripts/innosetup/lite-xl@92x97.bmp
new file mode 100644
index 0000000..ec00ef5
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diff --git a/scripts/innosetup/litexl-55px.bmp b/scripts/innosetup/litexl-55px.bmp
deleted file mode 100644
index d3424a9..0000000
Binary files a/scripts/innosetup/litexl-55px.bmp and /dev/null differ
diff --git a/scripts/innosetup/wizard-modern-image.bmp b/scripts/innosetup/wizard-modern-image.bmp
deleted file mode 100644
index cf844e0..0000000
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