Master-x64.ina Here

// Check for .NET Framework 4.8 if not IsDotNet48Installed then begin SuppressibleMsgBox('This application requires .NET Framework 4.8.' + #13#10 + 'Please install it from https://dotnet.microsoft.com/download/dotnet-framework/net48', mbError, MB_OK, MB_OK); Result := False; Exit; end;

[Files] ; Install main executable (ensure this is your 64-bit .exe) Source: "bin\x64\Release\MyApp.exe"; DestDir: "{app}"; Flags: ignoreversion ; Install dependencies (e.g., DLLs, configs) Source: "bin\x64\Release*.dll"; DestDir: "{app}"; Flags: ignoreversion recursesubdirs ; Install documentation Source: "docs*"; DestDir: "{app}\docs"; Flags: ignoreversion recursesubdirs ; NOTE: Don't use "Flags: ignoreversion" on any shared system files master-x64.ina

// --------------------------------------------------------------------- // Custom wizard page (example: welcome message) // --------------------------------------------------------------------- procedure CurPageChanged(CurPageID: Integer); begin if CurPageID = wpWelcome then begin WizardForm.WelcomeLabel2.Caption := 'This 64-bit version is optimized for modern systems.' + #13#10 + 'Setup will guide you through the installation.'; end; end; // Check for

// --------------------------------------------------------------------- // Check for .NET Framework 4.8 (example) // --------------------------------------------------------------------- function IsDotNet48Installed: Boolean; var Release: Cardinal; begin Result := False; if RegQueryDWordValue(HKLM, 'SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\Full', 'Release', Release) then begin Result := (Release >= 528040); // .NET 4.8 = 528040 end; end; Result := False