Yes, there is checkbox in the installation wizard, asking wheather you want to uninstall older versions or not.
Both versions are working together on Windows 7.
> -----Original Message----- > From: Prof. Jake [mailto:email@example.com] > Sent: Sunday, December 09, 2012 4:58 PM > To: firstname.lastname@example.org > Subject: Re: M8 parallel to M9 installation > > Did you find out if this is possible? I want and need to do the same thing. > > Thanks > Prof. Jake >