If you use Spybot Search and Destroy or another spyware
removal tool, it may find an item called DSO Exploit. This
exploit is a bug in Internet Explorer that under certain
circumstances would allow untrusted software to run on the
computer. In other words, its a hole in Internet Explorer
that hackers could use to gain access to your system.
However, if you are running the latest version of Internet
Explorer and have all your Windows Updates installed, the
bug has been patched and is not a threat to your computer
system. Even though Spybot may still show it as a threat.