To disable the CD autoplay feature, use the following Windows XP registry hack:
Hive: HKEY_LOCAL_MACHINE
Key: SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer
Name: NoDriveTypeAutoRun
Type: REG_DWORD
Value: 181 hex 0x0b5
Or
Registry Settings
System Key: [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\CDRom]
Value Name: Autorun
Data Type: REG_DWORD (DWORD Value)
Value Data: (0=disable, 1=enable)