Run 2 installs of Axapta on the same machine

I have a loca install (2 tier) on my laptop, and I made changes to both VAR and USR layers. Now I need another instance with “vanila” install. I know there is a way to run 2 instances. Any idea as to which steps should I take? I’m afreid to damage the current install. Please help!!!

Hi I’d just copy the current application to a new folder, delete all non standard *.aod and *.ald files (axapd.aoi as well), make a new db, create a new config to point to it and start.