Missing File after security update

From: PLFRENCH (PLFRENCH_at_discussions.microsoft.com)
Date: 10/31/04 

Date: Sat, 30 Oct 2004 18:41:02 -0700

Everything seems OK but Norton Win doctor reports that a file is missing:
gapi32.dll which works with MAPISRVR,exe. Is this important? If so, where can
I get it?