A new custom license system for FileBot that will support all platforms is currently under development and will allow you to purchase FileBot on all supported platforms including Windows 7 and Windows Server. (1 June 2018)

Windows 7 and Windows Server do not support the Microsoft Store and thus don't make it easy to get and run the latest version of FileBot.
I highly recommend using Windows 10 but if this is really not an option for you, then I may be able to provide private builds for trusted contributors or users that are willing to pay a premium for custom builds. These builds are intended for companies or professional users that value software and customer support and don't blink twice about spending hundreds of dollars on software licenses.
Please note that custom builds for individual professional users (or companies) come at a significantly higher price because of the added time and effort involved as the process isn't fully automated like the Microsoft Store. It would make my life so much easier if I didn't have to worry about Windows 7 and Windows Server. The Microsoft Store saves me time and you money, so please use the Microsoft Store if possible at all.



Notes:
- Windows Server 2019 is expected to support Windows Store applications
- Windows XP / Windows Server 2008 are not supported and cannot be supported