Bought the Spybot Professional edition version Spybotsd 2.8.68 earlier this week, downloaded, installed, ran updates, immunisation and scan. Found that live protection was off but this came on after a reboot (not sure if this was mentioned anywhere during installation).

Now all my programs take a while to start and execute - one calls another program 33 times and so it halts for seconds each time that program is called. I can get around that as the called program only provides colour so only the initial load takes time. I assume that spybot is scanning each program as it is loaded - but why? If it was scanned and found safe in the system scan and its signature has not changed why is it being scanned again? Or is the signature check taking all those seconds?