Creating an "ADT as AutoCAD" Shortcut
You don't have to do all that. It's really simple.
All you have to do is copy your existing ADT icon. Right-click on the new icon and select "Properties". Rename the icon to something else (like "ADT as AutoCAD") and change the item in quotes after the /p parameter in the "Target" edit box to some bogus value - indicating an AutoCAD profile that doesn't exist. I'd just call it "ADT as AutoCAD". So instead of reading something like:
"C:\Program Files\Autodesk Architectural Desktop 2007\acad.exe" /ld "C:\Program Files\Autodesk Architectural Desktop 2007\AecBase50.dbx" /p "Architectural Desktop - Imperial"
Your target will instead look like:
"C:\Program Files\Autodesk Architectural Desktop 2007\acad.exe" /ld "C:\Program Files\Autodesk Architectural Desktop 2007\AecBase50.dbx" /p "ADT as AutoCAD"
Believe it or not, that's it! Run your new shortcut and you'll get a big old scary error message that the profile can't be found, so it will be built with the default profile instead. Guess what the default profile is? (Hint - it ain't ADT).