Open your registry and create a sub-key called QuickView under [HKEY_CLASSES_ROOT\*].
Change the (Default) value of the new sub-key to equal '*'.
Close the registry and open an Explorer window. Right-click on any file and the QuickView command should now appear.
Note: You need to have QuickView installed on your PC. If not, Go to Control Panel, Add/Remove Programs and add it from the Accessories group in the Windows Setup tab.
Key:[HKEY_CLASSES_ROOT\*\QuickView]
Value Name: (Default)
Data Type: REG_SZ
Data:*
