You may see the following dialog box when starting Pro Tools 10
You should select Yes
Revoice Pro installs two plug-ins for Pro Tools:
Pro Tools 10 may try to load the aax plug-in, however this is a 64 bit plug-in that only works with Pro Tools 11 and later. Pro Tools 10 assumes the plug-in is damaged.
If you run Pro Tools 11 on your system you will need to move the plug-in back from the "Plug-In (Unused)" folder.