DirectX management via registry

If you would like to fix a problem with your Direct X bugs
or run a game with a previous version of DX;
How to de-grade or re-install a different (newer or older) version of
Direct X?

here I will show how to manage your DX versions running using
windows or any other reliable registry edititor.


step 1:

Create a restore Point (is a good idea)
Open regedit (or other registry editor)

step 2:

export registry Tag (back up)
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Directx
save as <(dx + your current version number)>.reg

step 3:

[delete] the entire folder (key)
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Directx
key

step 4:

a. for some reason setup cannot find file [framedyn.dll]
, and as pre-caution [copy] file from
WINDOWS\system32\wbem\framedyn.dll
to
WINDOWS\system32\
directory if you have it there
run the direct x setup install for the version you want to use.


step 5:

restart PC after DX setup is complete.
run dxdiag.exe tool from run prompt to confirm that you had
indeed converted your dx version downgrade.

please realize that if you have problems doing this,
I advice againts the idea,
but if you had trouble, just try to use the restore point
you created to regain and restore the settings you had previously.


-------------------------------------------
I had successfully downgraded from
DXv 9.0c final
to
DXv 9.0b (included with/on/in toee play disk)

using only windows explorer and regedit and dx setup
(windows XP OS)
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