Spybot has also been subsumed into some bloated "security center" type software. As far as I know there's nothing out there that does as efficient a job at hosts-level blocking as Spybot did back in the day.
I remember having to run a tool that deleted then replaced the winsock registry entries on the machine with the default ones from XP to fix infections. Even if you got the binary files with spybot you’d still have a broken winsock half the time.
Those were the days of the amazing Royale theme for XP… awesome theme.
Spybot Search and Destroy + Adaware were always a knockout combo until maybe 2010?