Using Outlook 2003

We recently installed a new server and pushed out the Outlook 2003 to all
workstations. The majority of the workstations are receiving a "The add-in
"C:\Program Files\Common Files\Symantec Shard\vpmsece.dll" could not be
installed or loaded." error messages when opening Outlook. I have tried the
solutions in the "Files\Symantec_Client_Security\Symantec
AntiVirus\vpmsece.dll" could not be installed or loaded..." document;
however, when I search for the extend.dat file in all profiles on these
workstations nothing is found.

Is my problem the fact that Outlook is not creating an extend.dat file or
does anyone have another solution? If the problem is that an extend.dat is
not automatically being created, how do I get it to create one?

Any help would be greatly appreciated.

Thanks