Error por manejo de RAM Process (store.exe)

Colegas,

Tengo el siguiente problema, y por mas que aplico lo que dice en la KB
(810371)

El Server tiene:
SBS2003 std SP1
1.8 GHz
1 GB RAM

The store.exe process is allocating more memory than usual.

Check to see if you are having problems with e-mail. If so, stop and then
restart the Microsoft Exchange Information Store service.

You can disable this alert or change its threshold by using the Change
Alert
Notifications task in the Server Management Monitoring and Reporting
taskpad.

Muchas gracias.