Source: EventSystem with Event ID : 4354

Windows 2003 R2 Enterprise with SP2 running Exchange 2003 SP2.

I'm receiving Source : EventSystem with Event ID : 4354 with below output.  Can you please help?

The COM+ Event System failed to fire the PostShell method on subscription {F59B79FE-DEED-4DCE-8B16-AF13E1B06AD3}-{00000000-0000-0000-0000-000000000000}-{00000000-0000-0000-0000-000000000000}.  The subscriber returned HRESULT 80004001.