If you are running the program Spybot - Search and Destroy and DSO Exploit keeps coming up after a scan, you are not in danger, dont 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