Quote - Hey paola!  Thanks for your upmost love to your customers, friend!

I didn't grab DS4.5 but I wanted to let you know that I did read somewhere in the old forum before they shut down that you can't have 4.5 on the same machine as 4.0, as 4.5 will uninstall 4.0.  If I recall, I think there would be an issue as well if they were both on the same machine.  If that's the case (and it's all true), I wouldn't advise installing them both on the same machine.  I may be wrong though, but just to be cautious :)

...wolfie

 

This is also what I have read.