I'm not sure if applying the Audition patches / updates will do it for you. I haven't installed them myself since I havent had the need for it.
If Adobe Audition 3 freezes when refreshing DirectX plugins list, follow these instructions to temporarily disable the DX plugin. This should allow you to refresh the list without freezing Audition and then go back afterwards and re-enable the DX plugin to avoid damaging the full functionality of its parent application. (Note: This said because Roxio and Nero, for example, use DX plugins that are detected by audition and make it freeze, but if deleted permanently could impair either the application, FOLLOW INSTRUCTIONS EXACTLY!)
This method I figured out and used for my own purposes on my own system. It has worked flawlessly and repeatedly whenever I require. I warn you, it can be a huge a pain in the ****, so be ready.
I am not in any way responsible or liable for any damage caused by the usage of these instructions. You agree to use them at your own risk!
You will need to have downloaded and installed DXman from AnalogX site, get it here:
1. Start Adobe Audition
2. Go to 'EDIT' mode
3. Once in 'Edit' mode, drop down the Effects menu.
4. Make sure the DirectX Effects are enabled (otherwise click on 'Enable DirectX Effects' to do so)
5. Click on 'Refresh Effects List'
6. Let the refresh start and standby until the progress bar freezes.
7. Notice on the lower right corner of the 'Refreshing Effects list...' dialog box the name of the effect that is displayed and write it down. That should be the one that has caused the freeze. (i.e. ROXIO VCFWaveform 1.0 or something like that)
8. Go ahead and close Adobe Audition. If it won't click closed because of the freeze, use the task manager and kill the process.
9. Run DXMan
10. Once the list is populated, search through and find the DX effect you just wrote down.
11. Once found highlight it and click on 'Info'
12. Notice on the 'Info' Screen the "Filename' and 'CLSID' fields and make note of them.
13. Open the path to the 'Filename' you wrote down on a window and find the file indicated (.dll or .ax)
14. Right click the file and select rename. It will highlight.
15. DO NOT delete the name while highlighted. Hit the END button to go to the end of the filename beyond the extension and type .BAK
It should look something like this:
filename.dll.BAK or filename.ax.BAK
(If you don't see the original filename's three or two-character extension (.dll or .ax), make sure you have that feature enabled within folder options in Windows)
16. Now go to the start menu and click on 'Run'
17. In the field type in 'regedit' (without the hyphens ofcourse) to open the Registry Editor
NOTE: YOU ARE ABOUT TO USE A REALLY SENSITIVE PART OF THE SYSTEM, DO NOT MESS WITH ANYTHING ELSE IN HERE EXCEPT WHAT HAS BEEN INDICATED! YOU COULD PERMAMNENTLY DAMAGE WINDOWS OTHERWISE.
18. Click on 'Edit' and then 'Find...'
19. Type in the long CLSID number you wrote down earlier (Exactly as it is) and click 'Find Next'
20. It will search through for a bit and will find and highlight a matching entry
21. Once found, right-click that entry and click 'Export'
22. Save the entry to the desktop with the Effect's name so you won't forget what it's linked to (i.e. effectname.reg)
23. Once saved, right-click the entry and delete it. At the confirmation dialog click yes
24. Once deleted click 'F3' key to find the next ocurrance within the registry (if there should be one) and repeat steps 20-24 until there are no more matches found, with the only exception you'll save the following ones with a numerical difference to avoid overwritting the first one found.
effectname3.reg , etc
25. Run Adobe Audition and try refreshing the list again (steps 1-5)
26. If there was only one DX Effect creating the conflict, it should refresh and finish just fine this time. If it freeezes again repeat steps 7-24 and follow the cycle until the refreshing goes by fine.
27. Once successful close down Audition to re-enable the DX plugins (again, as to not affect the parent application)
28. Go back to the filename path back in step 15. Right-click the original file and remove the .BAK to return it to its original format (back to .dll or .ax) but remember if you should refresh the Effects list after re-enabling the DX effects it will more than likely freeze again and you'll have to start over. Audition should work just fine with all your VST and DirectX effects after fixing it, you shouldn't have to refresh the list unless you install a new effect in the future.
If you know you might purchase and install new effects later on, then keep handy the name and info of the effect that was making the conflict for easier fix later on.
29. Once that done, go to the folder you saved the .REG file(s) (step 21-22) and double-click them and hit yes for every confirmation.
30. Voila!, you have disabled and re-enabled the conflicting DX Effects and saved the day for Adobe Audition!
Happy music making!