In brief for XP Home:
- Fast User Switching for Multiple Users of a Computer
- Personal Privacy IE6 Feature
- Cookie Management
- Internet Connection Sharing
- Internet Connection Firewall
- Shared Documents Folder
For XP Professional:
- Corporate Security via GPOs
- Controlled Network Access : Managing Network Authentication
- Guest–only security model or the Classic security model
- Blank Password Restriction
- Enhanced Encrypting File System
- Certificate Services
- Credential Management
- Fast User Switching
- Internet Connection Sharing
- Internet Connection Firewall
- Software Restriction Policies
- Internet Protocol Security (IPSec)
- Smart Card Support
Relate tips: