Re-Enable is a one click tool to restore functionality "Regedit", Command Console "CMD", Start Menu, Task Manager, System Restore, Folder Options, Run Command, My Computer, Task Scheduler, Right Click Context menu, Ms-Config (Xp only), Control Panel, Search and more.
Re-Enable also includes a tool menu to scan, edit, and delete Autorun.inf files, repair Desktop icons and background, edit hosts files, services, network, protocols, and reset file and folder attributes.
Download Portable version @ http://www.tangosoft.co.uk/downloads.html