By downloading one of the offered files you accept the license agreement.
Luecky does not need to be installed via the setup routine. The application does work from a USB stick, CD-Rom or a network share too. Use the link above for such a use case. The only requirement is that all target computers have the Microsoft .NET Framework 2.0 or a never version installed.
Note: Microsoft has tightened the application privileges in the new Windows versions. Therefore, the security settings needs to be configured if you like to run Luecky from a network share. You can find a guidance to accomplish this task here.
Because Luecky is published under an open-source license you can download the source code here.
Further information and older versions of Luecky can be found on the development platform SourceForge.