Audition 2 & 3 presets gone missing? How to re-establish them.

Question

It's a good scheme to back up your Audition 2.0 (or 3.0) workspaces and  preferences from time to time even if things are running well. To do so  is quite simple.
1. Close Audition
2. Go to C:\Documents and settings\{yourusername}\Application Data\Adobe\Audition
3.  You should see a folder named 2.0 (or 3.0) - make a copy of the whole folder  and its contents and call it "My last 2.0" [or 3.0, or whatever] using normal  Windows procedures.
If you then want to reset your preferences to  the "factory install" state, delete the original "2.0" or "3.0" folder. When you  restart Audition, it will be re-created automatically, and in its default  state. But doing so will erase your own preferences and workspaces, so  do not do that unless you have a backup first - or even two.
In  the future, if you've had a problem you may need selectively to restore  (copy) the files or folders from "My last 2.0 (or 3.0)" into "2.0 (or 3.0)", as they  contain important setups and customisations which you'll probably want  to have back. Here's a list of some of them:-
DefaultWorkspaces  [folder] - contains the "factory" workspaces. Audition expects to find  the contents there under the original names, but if you want you can  replace them with defaults of your own devising, using the same names -  but under normal circumstances, leave them alone.
OriginalUserWorkspaces  [folder] - these are in essence backups of the workspaces you have  saved yourself. If (using the program's relevant option) you restore a  workspace after having amended it, Audition will use the the version of  the workspace in this folder.
UserWorkspaces [folder] - these are  the current versions of workspaces you have created yourself. If you  restore a workspace after having amended it, Audition will replace the  amended workspace in this folder with the original one from the  OriginalUserWorkspaces folder.
AudCust.ini
- Favourites definitions
AUDITION.INI
- Edit view mastering rack definitions
- "Extract from CD" definitions
AudMP3.ini
- Definitions of mp3 encoding settings
audition_settings.xml
- general settings and preferences - this contains a lot of handy stuff
effect_settings.xml
- effect settings

Answer 1

There is also another way to do the same thing, which you may prefer. This is Suite Spot's backup utility:
AuditionFX