printers-tray/windows-installer/printers-tray.iss

#define MyAppName "Printers Tray"
#define MyAppVersion "0.0.1"
#define MyAppPublisher "Eiru Software"
#define MyAppURL "http://www.eiru.com.py/"
#define MyAppExeName "printers-tray.bat"

[Setup]
AppId={{3E5917E1-53C8-4930-A5BD-ADA89B7841F9}
AppName={#MyAppName}
AppVersion={#MyAppVersion}
;AppVerName={#MyAppName} {#MyAppVersion}
AppPublisher={#MyAppPublisher}
AppPublisherURL={#MyAppURL}
AppSupportURL={#MyAppURL}
AppUpdatesURL={#MyAppURL}
DefaultDirName={pf}\{#MyAppName}
DefaultGroupName={#MyAppName}
OutputDir=C:\Users\Robert\Documents\printers-tray
OutputBaseFilename=printers-tray
Compression=lzma
SolidCompression=yes
ArchitecturesInstallIn64BitMode=x64
PrivilegesRequired=admin
RestartApplications=yes
AlwaysRestart=yes

[Languages]
Name: "spanish"; MessagesFile: "compiler:Languages\Spanish.isl"

[Files]
Source: "C:\Users\Robert\Documents\printers-tray\printers-tray*.jar"; DestDir: "{app}"; Flags: ignoreversion
Source: "C:\Users\Robert\Documents\printers-tray\lib\*"; DestDir: "{app}\lib"; Flags: ignoreversion recursesubdirs createallsubdirs
Source: "C:\Users\Robert\Documents\printers-tray\printers-tray.bat"; DestDir: "{app}"; Flags: ignoreversion 
Source: "C:\Users\Robert\Documents\printers-tray\printers-tray.ico"; DestDir: "{app}"; Flags: ignoreversion

[Icons]
Name: "{commonstartup}\{#MyAppName}"; Filename: "{app}\printers-tray.bat"; IconFilename: "{app}\printers-tray.ico"

[Code]
const
	REQUIRED_JAVA_VERSION = '1.8';
function InitializeSetup(): Boolean;
var
	JavaVersion: String;
	ErrorCode: Integer;
begin
	if RegQueryStringValue(HKLM, 'SOFTWARE\JavaSoft\Java Runtime Environment', 'CurrentVersion', JavaVersion) then
	begin
		Result := CompareStr(JavaVersion, REQUIRED_JAVA_VERSION) >= 0;
	end;

	if Result = False then
	begin
		if MsgBox('Este programa requiere Java 1.8 o superior. Desea descargarlo ahora?', mbConfirmation, MB_YESNO) = IDYES then
		begin
			ShellExec('open', 'https://java.com/download', '', '', SW_SHOWNORMAL, ewNoWait, ErrorCode);
		end;
	end;
end;