Plz give suggestion

If you want to remove this virus, you have to be very careful and use your common sense, for you to find it. So you have to try and identify one name that the virus uses, then use that name to get every other name that it may also be using to run.

Open my computer, double click drive C: double click document and settings, double click all users, and open my favourite folder look for the name of the virus. It might be virus scan.com. Select all the files related to virus scan.com and delete them. Do the same for all the user accounts in that computer. Also, look for the virus in your user account application data. Open document and settings and double click on all users , open application data also look for the virus there if you find it delete it and do same for all the other user account

Secondly click start, click run and type Regedit. Registry editor will open. Click the minus button beside my computer to close the tree view such that the registry editor looks like the one below. Click edit menu and click find in the menu. On the find box, type the name of the virus in the search box and press find next. You will see the registry file by the right pane. Make sure that it is the right file else do not delete because if you delete what you are not sure of you may delete an important registry entry that may cause crash of data lose. So Make sure the file you are about to delete is name that the virus uses to run.
Make the search again until you have removed all the registry entries related to the virus. Download no adware from http://www.noadware.net and install it. Update the application and Use it to scan your computer, you will see all the viruses, their location, where they are installed on your computer. Because you are using a trial version, you will not be able to remove the viruses. Look at the items, their location, type, danger rate. For all the items that show severe, open the location shown in the location field and delete the files, e.g. C:\Documents and Settings\netways ltd\Application Data\antivirus scan.com. Do so for all other files that are flagged dangerous. Then rescan your computer again with NoAdware you will notice that items that you have remove manually will not be displayed again.

Furthermore click start, control panel double click add and remove program in the control panel. When the add and remove program window opens look for installed application relating to that virus, if you see any one uninstall it.

Lastly by now you have known the various names the virus is using to run. Do a computer search for the name that you have seen. Click start, click on search. when the search window opens type the name of the virus inside the files and folders field and press search. When the search is over, the result will be dispayed at the right pane of the search window. Look at the right pane you will see the name u searched for, right click on the name and click on open containig folder. This will open the folder that contains the file name you are looking for. If this is the folder containing the virus and other program that the virus run. Delete the entire folder. Go to C:\Programe Files. Look serach for the virus name and delete the folder from programe files. When these is done properly restart your computer, you will find the desktop virus no more. Your desktop will be plane color, you can change it to what ever you want. Your computer is free from desktop virus.
for screen shots and more details check this site http://online-computer-repairs.blogspot.com/2008/12/how-to-r­emove-desktop-virus.html