IT's not sasser, he's running 98SE
Per Microsoft:
**Software Affected
Windows XP,
Windows XP Service Pack 1 (SP1)
Windows 2000 SP2,
Windows 2000 SP3,
Windows 2000 SP4
**Software Not Affected
Windows XP 64-Bit Edition Version 2003
Windows Server™ 2003
Windows XP 64-Bit Edition SP1
Windows Millennium Edition
Windows 98 Second Edition
Windows 98
Windows NT® 4.0 SP6a