Since Quick Launch is a product of IE, you may be on to something. By making a simple registry change, you can completely reinstall IE6.....

1. Run regedit.
2. Open HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Active Setup\Installed
Components\{89820200-ECBD-11cf-8B85-00AA005B4383}.
3. Right-click the Reg_DWORD value IsInstalled.
4. Select Modify.
5. Change the Value Data to 0.
6. Exit the editor.
7. Reinstall IE 6.0.
8. If you also want to reinstall Microsoft Outlook Express 6.0, make
the same registry changes to the value at
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Active Setup\Installed
Components\{44BBA840-CC51-11CF-AAFA-00AA00B6015C}.