Trojan alert

[caravel]

C:\Documents and Settings\user\My Documents\Software\HijackThis.exe

When running HijackThis you should rename it to e.g. HijackThis1991.exe because many spyware programs can hide from it if they recognise it running. Ewido/AVG Antispy is a good program, and should remove most nasties though not all. Spybot S&D, Adaware, Spywareblaster and AVG Anti Virus are all worth having also. The Immunise function of Spybot S&D will block alot of bad content, Spywareblaster works in a similar way. These programs don't run in the background at all either.

As a rule always run these programs before resorting to fixing with HJT. There is nothing else in your HJT log, but you need to run another scan and post another log with the executable renamed.

AVG antispy should fix that adware (you've probably fixed it already):

O4 - Startup: Webshots.lnk = C:\Program Files\Webshots\Launcher.exe