My Spybot S&D takes 4 minutes from doubleclick to GUI 1.6.2.
Then 45 sec to 1 minute to download updates then
4 minutes from 'exit' to GUI.
The actual scan takes about 45 minutes.
bottom line shows 751567.
Also SpyBot-SD resident is always the last progrm to load
on startuo. Boot usally takes from 7 to 9 minutes.

I have a Dell Dimension 8200 built in 2001.
Intel Prem 4Cpu 2.4 ghz
256 ram
xp home sp 3
Also run Norton anti virus.
Any clues to the slowness?