to scan for virus using sysclean virus scanner.

goto:   http://www.trendmicro.com/download/dcs.asp
and download sysclean.com by clicking on "sysclean package".
look for the following text at the above website.
"If you are not a Trend Micro customer please download the following file.

Sysclean Package 	3.3MB"


download sysclean.com to a folder on your computer hard drive. 
Then download the current virus pattern file. It will be named 
lpt###.zip , where ### will be the current version number. Download it from
http://www.trendmicro.com/download/viruspattern.asp

Unzip that file into the same folder containing sysclean.com.

Now you have the virus scanner (sysclean.com) and the current virus definitions for the scanner to use to scan your computer.

Now just double click on sysclean.com file to run the program, and tell it to start scanning your computer.