Problem rebooting and couldn't get on the internet but suddently I could. What's going on.?

Question

Rebooted the computer and tried to install my NTL cd rom to install the internett connection thing, but despite repeated attempts the CD rom only went so far and then came up with error code 800 and asked me to retry. I eventualy gave up. Then just decided to click on the E symbol and low and behold I got straight on to the internet, but I didn't install it?

Answer 1

Maybe it was automatically installed when the Found New Hardware Wizard came up, if it did.