Office 2003 on WinXP SP2 with NOD32 anti virus 4.0.474 this user receive 2 excel attachments on a daily basis. one contain a macro. few days ago he started poping an error (see attachment) when opening the one with the macro. the 2nd attachment open just fine I've sent the email to another client (non outlook) and the macro file open fine. I followed this: http://support.microsoft.com/kb/305982 but both folder and reg key already in place. knowing that it is not the file (which open out of outlook), not the local excel or outlook (the 2nd file in the same email open just fine) I suspect the NOD32 scanning on outlook to be the reason any ideas?