Step 1. Get your project ready (load or create it).

Step 2. Drag RapidFindReplacePopupControl from your Toolbox to your window.

If the controls are not already in the Toolbox - right click the Toolbox and select 'Choose Items'.
In the WPF Components Tab choose 'RapidFindReplacePopupControl' & 'RapidFindReplaceControl'.

(If you don't see them, click browse and find the DLLs)

Step 3. Drag a TextBox Control onto your window.

Step 4. Run!

To launch RapidFindReplace while the project is running press "Ctrl-F".