Hi,
Yes, you can install the eConnect runtime from CD2.
After you install it, you'll want to install the eConnect service pack; the latest is SP4, and is available for download on Customer Source.
Make sure to read the install guide before installing the runtime though, as you'll want the eConnect domain user setup before you do the install.
And if you are installing on a Server 2008 machine, here's something you might run into:
http://dynamicsgpland.blogspot.com/2010/05/econnect-10-sp4-access-is-denied-error.html
Thank
s,
Steve Endow
Dynamics GP Certified Trainer
Dynamics GP Certified Professional