I haven't seen this kind of a problem in Windows for a long time! I installed the program, then cancelled the installation of some additional components that I thought I won't want to install. The installation was complete, but the resulting application was ... nowhere! I tried to reinstall, but then the installation stopped with an error (see screen shot).
Of course, I tried to "remove program", but there was nothing with "Vegas".
I also ran a CCleaner to clean-up registry, and restarted computer. Nothing helps. I just cannot install this software! Amazing... Hard to purchase, if one cannot even install.