You can't run Family Origins 5.0 on your computer because it is not developed to run on Windows XP operating systems. However, the software has been discontinued by its developer and replaced by RootsMagic. The RootsMagic application is compatible with Windows XP platforms and can be acquired from the official web page. You can test it free of charge if your download and install its trial version. Click the Free Download button, fill up the provided fields, save the file to your computer and install it following the self-explained instructions.