Hello
Open outlook express go to the top click on Tools then click on Options then
click on the Security Tab take the check mark out of Do not let attachments
to be saved or opened that could be potential virus.

Be sure to visit MS Windows update site and download all the critical
updates, this is for your security and safety.
http://v4.windowsupdate.microsoft.com/en/default.asp

If this is the same problem that I had, you can fix it this way.  1  Go to
your email.  2  Click on tools.  3  Click on options.  4  Click on Security.
5  Under Virus Protection, there's a box by the line that says, "Do no allow
attachments to be saved or opened that could possibly contain a virus,"  If
this box has a check mark in it, click on the box to remove it.  Seems that
the virus scan considers just about all attachments to be possible virus
carriers.  Hope this helps