A. After you download TweakUI at the Microsoft PowerToys for Windows XP Web page and install it, tweakui.exe will be located in the \%systemroot%\system32 folder. To add tweakui.exe to the Control Panel folder, paste the following listing into a text file (name it tweakui.reg) or download tweakui.reg at Download, then execute it by double-clicking the file. When you open Control Panel, you'll have a TweakUI link.

Windows Registry Editor Version 5.00

[HKEY_CLASSES_ROOT\CLSID\{D14ED2E1-C75B-443c-BD7C-FC03B2F08C17}]
@="TweakUI"
"InfoTip"="Starts TweakUI for Windows XP"

[HKEY_CLASSES_ROOT\CLSID\{D14ED2E1-C75B-443c-BD7C-
FC03B2F08C17}\DefaultIcon]
@=hex(2):25,00,53,00,79,00,73,00,74,00,65,00,6d,00,52,00,6f,00,6f,00,74
,00,25,00,5c,00,5c,00,53,00,79,00,73,00,74,00,65,00,6d,00,33,00,32,00,5c,00,5c
,00,74,00,77,00,65,00,61,00,6b,00,75,00,69,00,2e,00,65,00,78,00,65,00,2c,00
,30,00,00,00

[HKEY_CLASSES_ROOT\CLSID\{D14ED2E1-C75B-443c-BD7C-FC03B2F08C17}\Shell]

[HKEY_CLASSES_ROOT\CLSID\{D14ED2E1-C75B-443c-BD7C-
FC03B2F08C17}\Shell\Open]

[HKEY_CLASSES_ROOT\CLSID\{D14ED2E1-C75B-443c-BD7C-
FC03B2F08C17}\Shell\Open\Command]
@="tweakui.exe"

[HKEY_CLASSES_ROOT\CLSID\{D14ED2E1-C75B-443c-BD7C-
FC03B2F08C17}\ShellFolder]
"Attributes"=dword:00000030

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\ExplorerControlPanel\NameSpace\{D14ED2E1-C75B-443c-BD7C-FC03B2F08C17}]
@="Tweakui for Control Panel"