Re-Installing Fritzing on new Operating system

I bought Fritzing for 8 Euros but I want to re-install Windows and I don’t know if I will be able to download Fritzing again without having to pay for it.

Copy the Fritzing download file to external media (such as a thumbdrive) reinstall windows then copy the install file back to Windows and run the Fritzing installer to reinstall Fritzing on the new Windows implementation.