#DEFINE DEFAULT_APP_TREE SYS(5) + SYS(2003) #DEFINE DEFAULT_DRIVE SYS(5)I fairly certain this is working correctly, but I am looking for some re-assurance. When I compile, the SYS(5) + SYS(2003) is being substitued for all occurrences of DEFAULT_APP_TREE as opposed the current evaluation of SYS(5) + SYS(2003). Right? In other words, on my development machine, this would evaluate, at runtime, to D:\Apps\DFS. On my users, it could evalute to C:\Apps\DFS.