Yes, you can do so because the unit and class names are totally different. We recommend that you switch to Indy because most Winshoes 7 development has stopped in favor of Indy development and you should only keep using Winshoes 7 if there is a very compelling reason to do so (e.g. you still need support for older Borland products, or you application is only being maintained). We say this because Winshoes 7 may not have some newer features and there are some bugs that were fixed since Winshoes 7.