Create a Form, Memo etc. and add a new button, then paste in the code below. The button will allow you to read a value from the Windows Registry by specifying the Registry Key, Sub-Key and Value to retrieve (these are defaulted to show where the Internet Explorer 'Favorites' folder is set to).
e.g. if you want to read the registry that a Citrix session sees, run Lotus Notes under Citrix and then access/click the button from say a draft memo in your mail file.