Windows XP was released in Aug 2001.
Microsoft ceased all support for Windows XP for most users in April 2014.
The biggest issue with Windows XP is that the tools required to create a program as complex as NetLogger are no longer supporting Windows XP development.
Think of Windows XP like you would think of your favorite boat anchor transceiver: It's paid for, it still works great, and you love it. But it does not have all the bells and whistles of your newest rig such as built in support for digital modes. Radio manufacturers are constantly releasing new models and stopping the sale of the old ones. And so it goes with Windows.