Attachments sometimes contain viruses, but if you have good anti-virus protection and you want to open attachments in Outlook Express 6, you may receive a message that says, “"Outlook Express removed access to the following unsafe attachments in your email: name of file."

To disable this feature, do the following:
1. Start Outlook Express 6.
2. On the Tools menu, click Options.
3. Click the Security tab, click to clear the "Do not allow attachments to be saved or opened that could potentially be a virus" check box under Virus Protection, and then click OK.

Once you have turned off this protection, you will be able to read attachments. Be sure to keep your anti-virus software up to date!