The only free key generator software that will come close to the functionality of something like Windows Key Generator is probably key Generator. It does not however offer the flexibility and ease of use that some of the other great applications offer. JKey Generator basically gives you a free Windows key generation pass and allows you to set up a variety of different task-oriented programs, or applications. If you have ever used a Mac, you may be familiar with the concept of using a task manager to manage different programs and applications. There are various types of programs that can be run from the program.
JKey Generator is an open source concept and you are free to do whatever you want with it. The program is usually pretty user friendly but it has certain limitations when it comes to what it can do. For example, it will not run any non-approved applications. You can also make modifications to the program but you cannot make any changes that are not supported by the program. Another limitation is that the program will only generate a very limited number of keys, which means that the program will not give you the ability to generate extremely complex keys. You can, however, take advantage of the large amount of options that the program has to offer. One thing that this program does have going for it is that it uses a very simple interface that allows for quick setup and other people who may be new to programming can easily understand the program.
Another thing that JKey Generator is good at is the fact that it will allow you to share the keys that you generate with other people and this way they can also generate keys for Windows. It is a unique concept and it works very well. The lack of the advanced key generation capabilities should not prevent you from using this software.