system process causing high cpu utilization

My system process is causing high utilization.  The server is a domain controller (not the global address catalog) and file server.  We only have 80 users.  It has a 2.8 Xeon and 2 gigs of memory.  Any suggestions?
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Running 2003 with sp1?

Process Explorer from Sysinternals may help pinpoint the issue:

It is simply spiking at times, or is it constantly reaching 100% for sustained periods?

It's the system process you are referring to itself, right?  Not system idle process or another process?
gopher_49Author Commented:
I'm running 2003 with sp1.  I'm referring to the system process which is staying at around 28% - 35%, however, it will spike up to %80-%85.  I'll check out the utility.  I'll eventually add another processor, however, I thought maybe it was a configuration issue.
There are some issues with using a server as both a DC and a file server, but that refers to SMB and the slowness of file transfers with small files.  Not sure if it would be related to this or not.

If you are running a real-time virus scanner on it as well, you may exclude the SYSVOL and NETLOGON directories, as well as any DHCP or DNS directories.

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gopher_49Author Commented:
I just added some exclusions.  I could of sworn I did that I along time ago, however, the exlusions were no longer there.  Let's see how this works.

gopher_49Author Commented:
I had the processor scheduling within the performance tab set to programs not background services.  Once I changed that everything worked perfectly.
ah...good find...thanks for the points!
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Windows Server 2003

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