I happened to look at my boot.ini file in Notepad and noticed an additional two lines

[spybotsd]
timeout.old=30

The PC boots normally, no problems. I have Spybot 1.6.2.4, sdhelper active, teatimer disabled. XP Pro SP3.

Just curious as to why or how that got put there and what it signifies. The last modified date of the boot.ini file is in December 2009. (I may at that time have been playing with a BartPE disc that includes the spybot plug in; I have also briefly played with the Spybot 2 alpha2; could it be one or the other of these?).

Can I delete those lines, if they serve no purpose?