I have Windows XP and I have deleted Toolbox 4.9. When I found 5.0 in my "Programs" folder, then my shortcut disappeared and I could not find the "CST.exe." file. Do I need both 4.9 and 5.0? Should I delete 4.9?
Unless the 5.0 version uses libraries from 4.9, it's safe to replace the old version with a new one. Once updated, many applications change their main executable to another name which is normal because it was the choice of the developer.