Last version that would run on XP was v3.0.35 which you can get from here:
https://sambapos.org/en/downloads
V4 and V5 require .NET 4.5 which is not compatible with XP.
Last version that would run on XP was v3.0.35 which you can get from here:
https://sambapos.org/en/downloads
V4 and V5 require .NET 4.5 which is not compatible with XP.