diff --git a/other/ewsdr_inno_setup.iss b/other/ewsdr_inno_setup.iss
index e6c9ba9..7803b02 100644
--- a/other/ewsdr_inno_setup.iss
+++ b/other/ewsdr_inno_setup.iss
@@ -1,45 +1,46 @@
-[Setup]
-AppId={{6D65ED5C-AF9A-4A7E-AB17-8AE9125CA6E9}}
-AppName=EWSDR
-AppVersion=__VERSION__
-DefaultDirName={pf}\EWSDR
-DefaultGroupName=EWSDR
-UninstallDisplayIcon={app}\ewsdr.exe
-Compression=lzma2
-SolidCompression=yes
-OutputDir=__OUTPUT_DIR__
-ArchitecturesAllowed=x64
-ArchitecturesInstallIn64BitMode=x64
-OutputBaseFilename=__OUTPUT_FILENAME__
+ [Setup]
+  AppId={{6D65ED5C-AF9A-4A7E-AB17-8AE9125CA6E9}}
+  AppName=EWSDR
+  AppVersion=__VERSION__
+  DefaultDirName={pf}\EWSDR
+  DefaultGroupName=EWSDR
+  UninstallDisplayIcon={app}\ewsdr.exe
+  Compression=lzma2
+  SolidCompression=yes
+  OutputDir=__OUTPUT_DIR__
+  ArchitecturesAllowed=x64
+  ArchitecturesInstallIn64BitMode=x64
+  OutputBaseFilename=__OUTPUT_FILENAME__
 
-[Languages]
-Name: "russian"; MessagesFile: "compiler:Languages\Russian.isl"
+  [Languages]
+  Name: "russian"; MessagesFile: "compiler:Languages\Russian.isl"
 
-[Tasks]
+  [Tasks]
+  Name: "desktopicon"; Description: "{cm:CreateDesktopIcon}"; GroupDescription: "{cm:AdditionalIcons}"; Flags: unchecked
 
-Name: "desktopicon"; Description: "{cm:CreateDesktopIcon}"; GroupDescription: "{cm:AdditionalIcons}"; Flags: unchecked
+  [Files]
+  Source: "__SOURCE_PATH__\__ARCH__\ewsdr.exe"; DestDir: "{app}"; DestName: "ewsdr.exe"
+  Source: "__SOURCE_PATH__\__ARCH__\wdsp.dll"; DestDir: "{app}";
+  Source: "__SOURCE_PATH__\__ARCH__\libfftw3-3.dll"; DestDir: "{app}";
+  Source: "__SOURCE_PATH__\__ARCH__\libfftw3f-3.dll"; DestDir: "{app}";
 
+  [Icons]
+  Name: "{group}\EWSDR"; Filename: "{app}\ewsdr.exe"
+  Name: "{group}\EWSDR OpenGL"; Filename: "{app}\ewsdr.exe"; Parameters: "--opengl"
 
-[Files]
-Source: "__SOURCE_PATH__\__ARCH__\ewsdr.exe"; DestDir: "{app}"; DestName: "ewsdr.exe"
-Source: "__SOURCE_PATH__\__ARCH__\wdsp.dll"; DestDir: "{app}";
-Source: "__SOURCE_PATH__\__ARCH__\libfftw3-3.dll"; DestDir: "{app}";
-Source: "__SOURCE_PATH__\__ARCH__\libfftw3f-3.dll"; DestDir: "{app}";
+  Name: "{commondesktop}\EWSDR"; Filename: "{app}\ewsdr.exe"; Tasks: desktopicon
+  Name: "{commondesktop}\EWSDR OpenGL"; Filename: "{app}\ewsdr.exe"; Parameters: "--opengl"; Tasks: desktopicon
 
-[Icons]
-Name: "{group}\EWSDR"; Filename: "{app}\ewsdr.exe"
-Name: "{commondesktop}\EWSDR"; Filename: "{app}\ewsdr.exe"; Tasks: desktopicon
+  [Run]
+  Filename: "{app}\ewsdr.exe"; Description: "{cm:LaunchProgram,EWSDR}"; Flags: nowait showcheckbox
 
-[Run]
-Filename: {app}\ewsdr.exe; Description: {cm:LaunchProgram,EWSDR}; Flags: nowait showcheckbox
-
-[code]
-procedure CurPageChanged(CurPageID: Integer);
-var
- ResultCode:Integer;
-begin
-  if CurPageID = wpWelcome then
+  [code]
+  procedure CurPageChanged(CurPageID: Integer);
+  var
+    ResultCode: Integer;
   begin
-	Exec('taskkill', '/F /IM ewsdr.exe', '', 0, ewWaitUntilTerminated, ResultCode);
+    if CurPageID = wpWelcome then
+    begin
+      Exec('taskkill', '/F /IM ewsdr.exe', '', 0, ewWaitUntilTerminated, ResultCode);
+    end;
   end;
-end;