If you are running the program Spybot - Search and Destroy and DSO Exploit keeps coming up after a scan, you are not in danger, don't worry. As long as everything is up to date the DSO Exploit is not a threat.

Here is how to get rid of a DSO Exploit:
http://www.pchell.com/support/dsoexploit.shtml

I hope this link helps.

Thanks,
Joseph