exe4j is trialware. Its use is not time limited, but restricted to evaluation purposes. Evaluation warnings are removed after purchasing an exe4j license.

exe4j requires an installed JDK/JRE >= 1.5. This is only a requirement for the exe4j wizard, not for the JREs that can be used by the generated launchers.

The current version is 4.1 (2008-04-03)
 

OS	Downloads
Windows Vista Windows 2000/XP Windows Server 2008 Windows Server 2003 Windows NT 4.0  Windows 98/ME	Setup Executable (4 MB)  ZIP Archive (6 MB)
Windows Vista x64 Windows XP x64 Windows Server 2003 x64 Windows Server 2008 x64	Setup Executable (4 MB)

Attention: The following distributions do not create launchers for the respective platforms. They are intended for developers who want to generate Windows executables on these platforms.

OS	Downloads
Linux x86 RPMs	RPM (6 MB)
Linux / Unix	TAR.GZ Archive (6 MB)
Mac OS X 10.1/2/3/4/5	TAR.GZ Archive (6 MB)