Disable the following Windows Server 2003 services:
- ERSvd - Error Reporting Service
- HidServ - Human Interface Device Access (keyboard buttons, remotes, etc)
- IsmServ - Intersite Messaging (except for AD replication across subnets, smtp intersite replication, etc)
- ScardSvr - Smart Card Access
- LMHosts - TCP/IP NetBIOS Helper (no legacy hosts)