Hi. I have a Dell running XP home with sp1.  I installed Microsoft's Antispyware beta version.  Is this the same as running an antivirus program, or do I also need to install Avast in addition to the microsoft program?  Also, if the antispyware program protects against viruses, does anyone know if my inbound and outbound e-mails are scanned as with zone alarm or avast?  Thanks....Steve.

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