I'm not saying that you need to log in as Admin everytime, to USE the program. What I am trying to say is that you will NEED to log in as Admin to CHANGE the properties of the program (right click, go to properties, change to "Run as Admin"). Then you can log out and get back in as a standard user. From then on when you click on the icon to open the editor, it will automatically "Run as Admin" behind the scenes.
As to WHY do some people have to do this, and others don't? Or why some programs and others are fine? Who the heck knows, I doubt that even MicroSoft themselves know the answers. (BTW I have to run my Filemaker PRO as Admin on Win7 64-bit Ultimate, so guess you got lucky there

).
The main point to realize here is, CC software WILL NOT pose any security threats to your system by running as admin. If it did, I'm sure there would be a huge flood of complaints on these forums about it, and CC wouldn't have had time to develop the awesome egg hunt two years running

.
Living the dream, stocking the cream