This means that the only way to have the software up and running on Windows 7 is through the Virtualbox. Virtualbox allows you to install Windows XP in a separate (emulated) environment. You can download the application from its official website. After the installation, follow the guide on how to install another operating system within Windows 7. At the end of the OS installation, make sure to also install Tools > Virtual Box Add-ons then transfer Sidekick 97 and you can use it.