[Windows Mobile Development and Hacking General] wg5566:
All control panel (settings) items are governed by this registry group: HKLM\ControlPanel You can add/delete items by playing around with these registry entries. Total Commander will be a good tool. Just remember to make a good backup before playing around with registry. And some changes will effect only after a soft reset.

Tips: Group=0 will show up in 'Personal' tab, 1=System tab, 2=Connections tab

These registry may vary from different OS build. The following is a sample from a WM6.1 custom ROM with OS Build 21040:

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\ControlPanel]
"GPRSCompressDefault"=dword:00000000

[HKEY_LOCAL_MACHINE\ControlPanel\1]
"Group"=dword:00000002

[HKEY_LOCAL_MACHINE\ControlPanel\10]
"Group"=dword:00000000

[HKEY_LOCAL_MACHINE\ControlPanel\2]
"Group"=dword:00000001

[HKEY_LOCAL_MACHINE\ControlPanel\25]
"Group"=dword:00000001

[HKEY_LOCAL_MACHINE\ControlPanel\28]
"Description"="HTC GPS Tool"
"Group"=dword:00000002

[HKEY_LOCAL_MACHINE\ControlPanel\3]
"Group"=dword:00000001

[HKEY_LOCAL_MACHINE\ControlPanel\4]
"Group"=dword:00000001

[HKEY_LOCAL_MACHINE\ControlPanel\42]
"Group"=dword:00000001

[HKEY_LOCAL_MACHINE\ControlPanel\5]
"Group"=dword:00000001

[HKEY_LOCAL_MACHINE\ControlPanel\6]
"Group"=dword:00000002

[HKEY_LOCAL_MACHINE\ControlPanel\7]
"Group"=dword:00000002

[HKEY_LOCAL_MACHINE\ControlPanel\Backlight]
"DimBKLinUnlockScreen"=dword:00000000
"Redirect"="Backlight.exe"

[HKEY_LOCAL_MACHINE\ControlPanel\Beam]
"Group"=dword:00000002

[HKEY_LOCAL_MACHINE\ControlPanel\Bluetooth]
"Group"=dword:00000002
"PinEntries"=hex(7):\
30,00,30,00,30,00,30,00,00,00,38,00,38,00,38,00,38,00,00,00,00,00

[HKEY_LOCAL_MACHINE\ControlPanel\Buttons]
"Group"=dword:00000000

[HKEY_LOCAL_MACHINE\ControlPanel\Certificates]
"Group"=dword:00000001

[HKEY_LOCAL_MACHINE\ControlPanel\Comm]
"Group"=dword:00000002

[HKEY_LOCAL_MACHINE\ControlPanel\Connection Setup]
"Group"=dword:00000002

[HKEY_LOCAL_MACHINE\ControlPanel\Connections]
"GoToTab"=dword:00000001
"Group"=dword:00000002

[HKEY_LOCAL_MACHINE\ControlPanel\Contrast]
"Redirect"=""

[HKEY_LOCAL_MACHINE\ControlPanel\Customer Feedback]
"Hide"=dword:00000001

[HKEY_LOCAL_MACHINE\ControlPanel\Desktop]
"Group"=dword:00000000

[HKEY_LOCAL_MACHINE\ControlPanel\Dial]
"Group"=dword:00000001

[HKEY_LOCAL_MACHINE\ControlPanel\Domain Enrollment]
"Group"=dword:00000002

[HKEY_LOCAL_MACHINE\ControlPanel\Error Reporting]
"Hide"=dword:00000001

[HKEY_LOCAL_MACHINE\ControlPanel\FixedDialing]
"DisableMenu"=dword:00000001

[HKEY_LOCAL_MACHINE\ControlPanel\Input]
"Group"=dword:00000000

[HKEY_LOCAL_MACHINE\ControlPanel\Menus]
"Group"=dword:00000000

[HKEY_LOCAL_MACHINE\ControlPanel\MobileVPN]
"Group"=dword:00000002

[HKEY_LOCAL_MACHINE\ControlPanel\MyCpl]

[HKEY_LOCAL_MACHINE\ControlPanel\MyCpl\1]
"CmdLine"=""
"Description"="Advanced Network"
"File"="AdvancedNetwork.exe"
"Name"="Advanced Network"

[HKEY_LOCAL_MACHINE\ControlPanel\MyCpl\10]
"CmdLine"=""
"Description"="Sliding Sound"
"File"="SlidingSound.exe"
"Name"="Sliding Sound"

[HKEY_LOCAL_MACHINE\ControlPanel\MyCpl\2]
"CmdLine"=""
"Description"="Clear Storage"
"File"="ClearStorage.exe"
"Name"="Clear Storage"

[HKEY_LOCAL_MACHINE\ControlPanel\MyCpl\25]
"CmdLine"=""
"Description"="TouchFLO Settings"
"File"="TFSettings.exe"
"Name"="TouchFLO"

[HKEY_LOCAL_MACHINE\ControlPanel\MyCpl\28]
"Description"="HTC GPS Tool"
"File"="HTCGPSTool.exe"
"Name"="HTC GPS Tool"

[HKEY_LOCAL_MACHINE\ControlPanel\MyCpl\3]
"CmdLine"=""
"Description"="Device Information"
"File"="DeviceInfo.exe"
"Name"="Device Information"

[HKEY_LOCAL_MACHINE\ControlPanel\MyCpl\4]
"CmdLine"=""
"Description"="Power"
"File"="Powerexe.exe"
"Name"="Power"

[HKEY_LOCAL_MACHINE\ControlPanel\MyCpl\42]
"CmdLine"=""
"Description"="GfxBoost"
"File"="GfxBoost.exe"
"Name"="GfxBoost"

[HKEY_LOCAL_MACHINE\ControlPanel\MyCpl\5]
"CmdLine"=""
"Description"="Microphone AGC"
"File"="MicrophoneAGC.exe"
"Name"="Microphone AGC"

[HKEY_LOCAL_MACHINE\ControlPanel\MyCpl\6]
"CmdLine"=""
"Description"="USB to PC"
"File"="USBtoPC.exe"
"Name"="USB to PC"

[HKEY_LOCAL_MACHINE\ControlPanel\MyCpl\7]
"CmdLine"=""
"Description"="Wi-Fi"
"File"="WiFiSettings.exe"
"Name"="Wi-Fi"

[HKEY_LOCAL_MACHINE\ControlPanel\Network]
"Group"=dword:00000002
"Hide"=dword:00000001

[HKEY_LOCAL_MACHINE\ControlPanel\Owner]
"Group"=dword:00000000

[HKEY_LOCAL_MACHINE\ControlPanel\Password]
"Group"=dword:00000000

[HKEY_LOCAL_MACHINE\ControlPanel\PC Connection]
"Group"=dword:00000002
"Redirect"=""

[HKEY_LOCAL_MACHINE\ControlPanel\PCConnection]
"Group"=dword:00000002
"Redirect"=""

[HKEY_LOCAL_MACHINE\ControlPanel\Phone]
"AllLang"=dword:00000001
"Flags2"=dword:00000010
"Group"=dword:00000000
"RESDLL"="tapres.dll"

[HKEY_LOCAL_MACHINE\ControlPanel\Power]
"FullState"=dword:0000004c
"Group"=dword:00000001
"HighState"=dword:00000033
"LowState"=dword:0000000b
"MedState"=dword:00000015
"Redirect"="powerexe.exe"

[HKEY_LOCAL_MACHINE\ControlPanel\SlidingSound]
"Group"=dword:00000000

[HKEY_LOCAL_MACHINE\ControlPanel\Stylus]
"Group"=dword:00000001

[HKEY_LOCAL_MACHINE\ControlPanel\System]
"Group"=dword:00000001

[HKEY_LOCAL_MACHINE\ControlPanel\Task Manager]
"Group"=dword:00000001

[HKEY_LOCAL_MACHINE\ControlPanel\TaskMgr]
"Redirect"=""

[HKEY_LOCAL_MACHINE\ControlPanel\Today]
"Group"=dword:00000000

[HKEY_LOCAL_MACHINE\ControlPanel\Voice Command]
"Group"=dword:00000000

[HKEY_LOCAL_MACHINE\ControlPanel\Volume]
"Group"=dword:00000000

[HKEY_LOCAL_MACHINE\ControlPanel\WiFi]
"Timeout"=dword:00000000

[HKEY_LOCAL_MACHINE\ControlPanel\Wireless LAN]
"Group"=dword:00000002

[HKEY_LOCAL_MACHINE\ControlPanel\WrlsMgr]
"Group"=dword:00000002
"Redirect"="\\Windows\\CommManager.exe"