Yes you can easily have both. They just can not be using the
same
web-server on the same port at the same time. The would be
confusing.
If you do not know how to connect CF to different web servers
and|or
ports then there is a bit of learning to do.
A common configuration is to have one version running on the
CF built-in
web server on port 8300 and the other version running on a
free IIS or
Apache web server running on port 80.