Keeps removing my Classes


How do I add or share Classes between Projects?
If I just add the Files to VS2013 it VS compiles it but UE doesn’t recognizes them and if I use “Refresh VS Project” it actualy deletes the new Files oO

How to add them to VS2013 or UE so that they are recognized correctly?

Thanks !

Fix has been to close everything and delete the Intermediate Folder, then start Unreal and do the CPP Refresh.