Winbox v2.2.16 is a legacy version of the graphical configuration utility used to manage MikroTik RouterOS
It is vital to understand the relationship between the Winbox client and the RouterOS version:
To understand the demand for v2.216, one must understand the evolution of MikroTik’s software. For years, the Winbox interface remained largely unchanged in its "2.x" iteration. It was known for being lightweight, extremely fast, and unobtrusive.