Installed fine for me on 1 PC, registration as described on the “Success” page and in other comments above. Had to create a blank drawing in order to see the file menu, then click About, then click activate then type in or paste the license key.
Program looks very good, much like Visio without the Visual Basic programming (yes, I found that helpful many times to automate things on charts that change often, and to allow uniform scaling, color changes, etc.). I like the Compose features (union, intersect, subtract, etc.) for creating new shapes by combining existing shapes. Very powerful, and I don’t remember seeing that in Visio (it’s been many many years since I used Visio).
If you need to make charts (not graphs) for about anything, this program should help.