Free poker software is now available from various card sites. Poker fanatics will definitely be delighted to get the programs and install them in their computers. There are different poker variations which are available in some software. The programs are made for solo play although some can be used to connect with other players over the Internet. Betting on these software can be done using virtual money or with real money from credit cards. There are certain precautions that should be done when getting software from the Internet. Some of these programs are bundled with viruses and worms which are harmful to the whole system. Some even have spyware which steal data from the user and send them to a central server. To avoid having these problems, users must check the validity of the site. They need to verify if the website is legal or not to ensure that no harm can be done to their computer.