User Guide

Using Specialized Scanning Tools
282 Dr Solomon’sAnti-Virus
2. To restrict this scan operation so that it examines only unread messages,
selecttheScan unread messages only checkbox. Depending on which
option you select in Step 1, this means that the extension will scan all
unread messages in your mailbox or in accessible public folders, or all
unread messages within the range you've selected.
3. Specify the file types you want the extension to examine. You can:
• Scan compressed files. Select the Compressed files checkbox to
have the E-Mail Scan extension look for viruses in compressed files
and file archives. Although it does give you better protection,
scanning compressed files can lengthen a scan operation.
Theextensionscansthesametypesofcompressedfiles andarchives
that the Dr Solomon’s Anti-Virus application does. To see a list of
those files and archives, see “Current list of compressed files
scanned” on page 318.
• Scan all files.SelecttheAll Files checkbox to have the E-Mail Scan
extension scan all file types in your mailbox, whatever their file
name extensions.
 NOTE: Dr Solomon’s Software recommends that you choose
this option for your first scan operation, or periodically
thereafter, to ensure that your mailbox 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
filesmost susceptible to virus infection.Todo so,click the Program
files only button.
To see ordesignate thefile types thatthe E-Mail Scan extension will
examine,clickExtensions.This openstheProgram FileExtensions
dialog box. To learn about how to change the files listed there, see
“Adding file name extensions for scanning” on page 313.
4. Turn onheuristic scanning. Click Advanced to open theAdvancedScan
Settings dialog box (Figure 8-3).