Krutonium://Full Marks to the #7zip people for the latest versions of 7zip still working on XP.
Kevin Karhan 
@krutonium Well, #7zip doesn't utilize any #API|s that are not available on #WindowsXP like #WPF (#WindowsPresentationFoundation) as #UI toolkit.
@kkarhan Right but even the compilers are making it harder these days.
@kkarhan Pretty much that, yeah, and there's also a general lack of testing against those old platforms, at least for compilers that come from EG Microsoft. But also just in general due to the lack of users.
@krutonium Yeah...
- I.e. if you want to make a #Game, it's more reasonable to Target #Ubuntu LTS Desktop than to target #Windows7 or even #WindowsXP because those two got #EoL'd long ago and the last #SteamHardwareSurvey showed them <1% each compared to a massive flood of #Linux Desktops and Handhelds.
And with the #SteamDeck there's like a perfect "bare minimum spec" system for #LinuxGaming to test against that isn't like a 12+ year old #ThinkPad with an obsolete Intel #iGPU!
@kkarhan Very correct!
@krutonium My guess is that the #7zip #devs still have some #WindowsXP machine / #VM somewhere and want to keep it supported...