This is how I got rid of quickinfo virus. I got it from another forum. I am pasting the same for your reference.
Please download free Trial of Superantispyware
http://www.superantispyware.com/superantispywarefreevspro.html
Install it using the Standard Install option. (You will be asked for your e-mail address, it is safe to give it.
close the program
Please download ATF Cleaner:
http://www.atribune.org/ccount/click.php?id=1 by Atribune.
This program is for XP and Windows 2000 only
Download and install DrWebCureit:
ftp://ftp.drweb.com/pub/drweb/cureit/drweb-cureit.exe
http://spywareinfo.dk/download/drweb-cureit.exe
to your desktop.
Please print out or copy this page to Notepad as you will be in Safe Mode and unable to refer to this page.
Reboot into Safe Mode by tapping F8 after the BIOS has loaded.
The Windows Advanced Options Menu appears.
Ensure that the Safe mode option is selected.
Press Enter. The computer then begins to start in Safe mode.
Double-click ATF-Cleaner.exe to run the program.
Under Main choose: Select All
Click the Empty Selected button.
NB. It's normal after running ATF cleaner that the PC will be slower to boot the first time.
Doubleclick the "drweb-cureit.exe" and click "ok" in the prompt window that will open , asking "start the express scan now".
It will first make a quick scan of your system, let it clean what it find, and when it says "done"
Click on the green screwdriver-
Actions Tab- Adware-Dialers-Riskware-Hacktools, use dropdown menu and select -Delete
Click on the drive(s) you want to scan . A red dot will mark the selected drive(s) . Then hit the green arrow in lower right corner It will now scan your drive(s), say yes to all
After the scan, in the Dr.Web CureIt menu on top, click file and choose save report list
Save the report to your desktop. The report will be called DrWeb.csv
Close Dr.Web Cureit.
Reboot your computer!! Because it could be possible that files in use will be moved/deleted during reboot.
Start Superantispyware/rightclick on the black/yellow bug in tray.
Hit - Scan Your Computer - button
Click on the drive(s) you want to scan. Put a check in - Perform Complete Scan, then next
it will scan now. When scan have finished, put a checkmark with all items it found. Next, after cleaning, let it Reboot
Start Superantispyware again –
Click Preferences and then click the statistics/logs tab.
Click the dated log and press view log and a text file will appear.