Opera and IE7 - Does SB know which I use?

I recently loaded Opera and it is so fast compared to IE7, not to mention I can actualy hear sounds played on websites now.

I still use IE7 for testing websites I design, etc.

Does SB know which browser I am using and when? Does it work effectively?

I loaded Opera after SB. I set Opera as the default browser.

I am using SB 1.06.03 and the atest Opera, IE7 and Windows XP Pro.

Spybot-Search&Destroy will recognize Opera, Microsoft Internet Explorer, and Mozilla Firefox (Optional) [and Immunize them all].