Cannot open some attachments in Outlook 2000, 2002 (XP), 2003.

When you open a message containing an attachment, the access to this attachment is denied and the following error message appears: Outlook blocked access to the following potentially unsafe attachments: ... Detailed steps are in MS KB Q318515, Q290497 and Q829982. To unblock the access to attachments, you have to edit registers: Outlook 2000: HKEY_CURRENT_USERSoftwareMicrosoftOffice9.0OutlookSecurity Outlook XP: HKEY_CURRENT_USERSoftwareMicrosoftOffice10.0OutlookSecurity Outlook 2003: HKEY_CURRENT_USERSoftwareMicrosoftOffice11.0OutlookSecurity Add a new String value: Level1Remove Enter a semicolon-delimited list of file extensions. E.g.: exe;hlp;js;inf;