The default behavior of Windows XP is to list Control Panel applets under predefined categories.

You can alter the category of a Control Panel applet by changing the category id, a REG_DWORD data type, associated with the applet path at:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Control Panel\Extended Properties\\{305CA226-D286-468e-B848-2B2E8E697B74\} 2

The predefined categories are:

0x00000000 Other Control Panel Options, default.

0x00000001 Appearance and Themes.

0x00000002 Printers and Other Hardware.

0x00000003 Network and Internet Connections.

0x00000004 Sounds, Speech, and Audio Devices.

0x00000005 Performance and Maintenance.

0x00000006 Date, Time, Language, and Regional Options.

0x00000007 Accessibility Options.

NOTE: Higher values are reserved.

I have exported the settings from one of my Windows XP Professional workstations:

Windows Registry Editor Version 5.00

\[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Control Panel\Extended Properties\\{305CA226-D286-468e-B848-2B2E8E697B74\} 2\]
"C:\\Program Files\\Common Files\\Microsoft Shared\\Speech\\sapi.cpl"=dword:00000004
"%SystemRoot%\\system32\\appwiz.cpl"=dword:00000008
"%SystemRoot%\\system32\\access.cpl"=dword:00000007
"%SystemRoot%\\system32\\desk.cpl"=dword:00000001
"%SystemRoot%\\system32\\hdwwiz.cpl"=dword:ffffffff
"%SystemRoot%\\system32\\inetcpl.cpl"=dword:00000003
"%SystemRoot%\\system32\\intl.cpl"=dword:00000006
"%SystemRoot%\\system32\\irprops.cpl"=dword:00000002
"%SystemRoot%\\system32\\joy.cpl"=dword:00000002
"%SystemRoot%\\system32\\main.cpl"=dword:00000002
"%SystemRoot%\\system32\\mmsys.cpl"=dword:00000004
"%SystemRoot%\\system32\\ncpa.cpl"=dword:00000003
"%SystemRoot%\\system32\\nwc.cpl"=dword:00000000
"%SystemRoot%\\system32\\nusrmgr.cpl"=dword:00000009
"%SystemRoot%\\system32\\odbccp32.cpl"=dword:00000000
"%SystemRoot%\\system32\\powercfg.cpl"=dword:00000005
"%SystemRoot%\\system32\\sticpl.cpl"=dword:00000002
"%SystemRoot%\\system32\\sysdm.cpl"=dword:00000005
"%SystemRoot%\\system32\\telephon.cpl"=dword:00000002
"%SystemRoot%\\system32\\timedate.cpl"=dword:00000006
"C:\\Program Files\\Common Files\\System\\Mapi\\1033\\MLCFG32.CPL"=dword:00000000