Everything you can download here is freeware. That means you can use and share it for free as much as you want. If you want to yous parts of it in your own programs it would be nice if you sent me a short email and mention me somewhere.
Although I don't know about any mistakes, I give absolutely no warranty on functionality or any damage caused by my programs. You use it "on your own risk".
Click on a program in the left hand menu for information and downloads.