I fear you may have an infection. It sounds a lot like a virus/malware/spyware.
Rogue security software is "scareware," provides limited or no security and user should not definitely pay for it. Once installed, the rogue security software may then attempt to entice the user into purchasing a service or additional software by:
1. Alerting the user with the fake or simulated detection of malware or pornography.
2. Altering system registries and security settings, then "alerting" the user.
3. Selectively disabling parts of the system to prevent the user from uninstalling the malware.
4. Some may also prevent anti-malware programs from running, disable automatic system software updates.
5. Block access to websites of anti-malware vendors.
6. Installing actual malware onto the computer, then alerting the user after "detecting" them.
Here are the list of some Rogue and Fake Anti Virus:
XP Security 2012
Antivirus 2011 Edition Limitee
Look through your list of installed programs for one of these, I have seen many other variations. Try the message you are getting inside a Google search and see what hits your get.