McAfee AVDCDE-AA-AA User Guide - Page 178

Using the VirusScan application 2. Specify the types of files you want the VirusScan application to examine. You can: • Scan compressed files. Select the Compressed files checkbox to have the VirusScan application look for viruses in compressed files and file archives. Although it does give you better protection, scanning compressed files can lengthen a scan operation. To see a list of the types of files and archives that the application scans, see "Current list of compressed files scanned" on page 292. • Scan all files. Select the All Files checkbox to have the application scan all of the files on the target you specified, whatever their extensions. Š NOTE: McAfee recommends that you choose this option for your first scan operation, or periodically thereafter, to ensure that your system is virus-free. You can then limit the scope of later scan operations. • Choose file types. Viruses cannot infect files that contain no executable code, whether script, macro, or binary code. You can, therefore, safely narrow the scope of your scan operations to those files most susceptible to virus infection. To do so, click the Program files only button. To see or designate the file name extensions the application will examine, click Extensions. This opens the Program File Extensions dialog box. To learn about how to change the files listed there, see "Adding file name extensions for scanning" on page 287. 3. Turn on heuristic scanning. Click Advanced to open the Advanced Scan Settings dialog box (Figure 5-13). Figure 5-13. Advanced Scan Settings dialog box 178 McAfee VirusScan Anti-Virus Software