Blank Subject gives error message

Avast Free Antivirus / Premium Security
1

Avast thinks an email with a blank Subject has a virus. How do I turn this off?

I use Windows 98, Outlook Express, Avast 4.6 Home Edition.

2

I remember asking this one myself a while back ;D

Check here http://forum.avast.com/index.php?topic=9390.msg78495#msg78495

3

Thanks, going to custom and unchecking “whitespace” seems to have worked.

4

It is not saying it has a virus, just that it is suspicious as this tactic is often used for malicious purposes to hide a second extension.
Like harmlesstextfile.txt .exe so you cant see the .exe and are tricked into thinking it is just a harmless text file and not an exe file.

Welcome to the forums.