Sorry for the delay, I do this with my spare time around work, and as you may have noticed there are a lot of people that need help and a lot of logs to read through.
You have a LOP infection that often comes together with Messenger Plus. To remove it we will try the simple way first.
1. Go to Add/Remove programs. Double click on "Messenger Plus!" (or click on Remove)
2. The "Messenger Plus! - Setup" is now displayed. Click on the Uninstall button. Note: options displayed on the first screen are not related to the sponsor program.
3. The sponsor screen is now displayed (if you don't see it, search for it in your Task Bar). To prove that someone is currently reading the screen, you have to type the code that is displayed. Once you enter the code, press Uninstall.
4. If you entered the code properly, the program will ask you to confirm that you want to uninstall.
You must answer "Yes" to this question, else, you won't have another chance of uninstalling.
5. To complete the uninstallation, follow the instructions that are displayed
(the first one is to close all your Internet Explorer windows, that's very important). When everything is complete, restart your computer and, post a new hijackthis log.
While in add/remove programs also uninstalled any of the following:
Window Search
Window Searching
Lop.com
LOP SEARCH
Browser Enhancer
Ultimate Browser Enhancer
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In addition to the LOP infection I see something that you may have installed on purpose but I want to make you aware of how it works.
http://vil.nai.com/vil/Content/v_122344.htm
*HOW IT WORKS
BY PARTICIPATING IN THE MOVIELAND / MEDIAPIPE FREE TRIAL OFFER THE MEDIAPIPE SOFTWARE WILL ENABLE YOU TO ACCESS THE AVAILABLE CONTENT FOR THE PERIOD OF TIME THAT SPECIFIED ON THE ADVERTISMENT YOU HAVE CLICKED THROUGH.
IF YOU DO NOT PROVIDE PAYMENT INFORMATION DURING THE TRIAL PERIOD OUR BILLING SOFTWARE WILL BE ENABLED UPON THE EXPIRATION OF YOUR TRIAL PERIOD. THE BILLING SOFTWARE WILL RUN ON YOUR COMPUTER, DISPLAYING POP-UP WINDOW REMINDERS THAT PROVIDE YOU WITH VARIOUS METHODS OF PAYMENT FOR THE ANNUAL LICENSE. THESE POP-UP WINDOWS WILL APPEAR MORE FREQUENTLY UNTIL YOU CHOOSE ONE OF THE PAYMENT OPTIONS AND PAY FOR THE LICENSE. THE BILLING SOFTWARE IS SOLELY DESIGNED TO PREVENT FRAUDULENT AND UNAUTHORIZED USE OF THE MEDIAPIPE SOFTWARE."
This billing "reminder" popup component appears distinct from the other software (MediaPipe, etc.) which make up the Movieland.com service. When installing the full package from Movieland.com, which includes the billing reminder component, referenences to a privacy policy and terms of service are present.
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When done please post a fresh Hijackthis log and I will let you know if you need to run additional software to remove LOP