Hi,
This is Spyware, a Trojan.
Here is a link explaining what it is, and how to manually remove it, if you don't want to buy the program that does it automatically.
http://www.spywareremove.com/removeWinSpy.html
Symantec has a full listing of all the Registry changes made by this program, including all files added to the computer.
Before you try anything manually, I would first do the following to see if it will do it automatically for you.
If you have an Antivirus Program, run a virus scan in Safe Mode.
Then, re-boot the computer. Here are steps and free programs suggested that just might get rid of this automatically:
If you think you already have Spyware/Advertising Ware in your computer, run these as follows:
AdAware at:
http://www.lavasoftusa.com
Download: AdAware_SE V 1.06
CWShredder at:
http://www.trendmicro.com/cwshredder/
Click on the "Remove CoolWeb Search" button to download
Both of the above programs run better and much faster when run in SafeMode.
To get into SafeMode:
Re-boot the computer, and immediately after starting up, Press and hold down, F8, at top of keypad.
When the options show on the screen, use the up and down arrow keys on the keyboard to select
"Safe Mode".
Press Enter
It's best to run the AdAware scan first; 3 times; then re-boot.
Then, run the AdAware scan again 3 times. Then, run CWShredder.
Re- Boot.
Reason for running so many times:
Some of these trojans' files can be deleted the first time; leaving some others; but on re-boot, they re-write the files that were deleted.
Running multiple times deletes most of it the first
Time.
If you wish to have a great program, after you clean out Spyware/Advertising Ware:
This program stops this stuff from getting into the computer in the first place, by placing URL's in the browser, stopping them instantly. One of the Very Best free programs anyone can download!
SpyWare Blaster 3.4
http://www.javacoolsoftware.com/sbdownload.html
Free online scan at:
http://www.trendmicro.com/spyware-scan/
This WinSpy also re-creates itself, if not deleted well the first time. So, please run the spyware scanner above, in Safe Mode, at least 3 times, before re-booting, to try getting rid of all of it.