Hi, i have a case when i need to change the windows shell to an another path and start the windows explorer(taskbar) at later. In Windows 7 x64 or x86 this code is work.. 1. Change HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\IniFileMapping\system.ini\boot\Shell Old value: String: "USR:Microsoft\Windows NT\CurrentVersion\Winlogon" New value: String: "USR: Software\Microsoft\Windows NT\CurrentVersion\Winlogon" 2. HKCUUSERS \Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell Value: String: "notepad.exe" (The alt shell) 3. Set HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced SeparateProcess REG_DWord = 1 (Tells Explorer to launch as a new process) 4. Rebooted and Logged in as the test user and try. But i get error in windows XP.. after i start the windows explorer(taskbar) later, it just show explorer. not the taskbar explorer.. can anyone help? thanks.