I have an IBM X236 with SBS2000 SP4. Exchange SP3
3 Giga of RAM
Every few day i start to receive in the event viewer the event id: 9582
with the details “The virtual memory necessary to run your Exchange server is fragmented in such a way that normal operation may begin to fail. It is highly recommended that you restart all Exchange services to correct this issue. “. if nothing is done than few days later the exchange crash and i have to restart it.