Unfortunately, there is no version of Cardio 24 that is compatible with Windows 7 systems. From what it seems DailyCare BioMedical discontinued the application and replaced it with their new product. If you have an account, you can download and install the software from the official web page Downloads section. Also, you can try to install and run your version of Cardio 24 in Windows XP Mode environment. Windows XP Mode is a free utility developed by Microsoft that allows you to use applications compatible with Windows XP directly on a Windows 7 computer.