Problems Upgrading to AccuRender 4 from AR3

Summary: AccuRender 4 can be upgraded from AR3 as long as you have the AR3 CDs, or AR3 is installed on your computer.

• PROBLEM: I can't install AR4 because my CDKey is an upgrade key, and the installer wants to find AR3 on the computer..
• SOLUTION: The installer can accept the AR3 CD disk as proof that you own it. The original CD release of AR4 caused some problems with disk swapping due to the Windows XP auto-play mechanism, so it might be appropriate to use the following solution:

Copy the 460MB file Setup AccuRender.exe from the AccuRender folder on the CD to your desktop. Then put in the AR3 CD and cancel out of the AR3 install. Then run the 460MB file from the desktop, and just push forward, don't cancel out because of the warnings. Then delete Setup AccuRender.exe

Note: Do not use this solution to install AccuRender from a AccurenderSR1 or later CD as the bonus content will not be installed.