I thought it best to post this in a new topic, so that it is not lost inside the big thread. For those interested in the discussion, please go here:-
http://forums.overclockers.co.uk/showthread.php?t=18199788
Post #277 by KNiVES explains this process, however, it is not very clear as it is taken from a German translation, so here is a tidy version.
All credit to those who discovered this, I do not want to take any for this. 
MLAA on 4870 GPU
I have installed the 10.10c hotfix drivers and I run Win7 64-bit with a 4870 GPU.
1. Download the fixed package. - http://www.mediafire.com/?5h6cpooivo4sbox
2. Extract to a folder on your PC. (I use 7-Zip)
3. Extract Setup.exe. (Again, I use 7-Zip)
4. When I extracted Setup.exe, it did it in the same folder. So I then simply browsed to ...\Packages\Drivers\Display\W76A_INF\B107032.
5. Take out "atiumdag.dl_" and place somewhere easy, say on your desktop.
6. Run a CMD prompt (as Admin). Do a change directory (CD) to your desktop location and enter, "expand atiumdag.dl_ atiumdag.dll"
7. You should now have "atiumdag.dll" on your desktop. Place this into C:\Windows\SYSWOW64. (Re-name the original file just in case).
-----
OK, so that's the file copy done. Now we need to alter a few settings in the Registry. I'd recommend taking a backup, just in case you want to revert back easily.
This is where it's slightly tricky. The original suggested Reg locations were different for me. It looks like they differ depending if you have a 4850 or a 4870. So these steps below are what worked for me.
-----
1. Open up Regedit.
2. Browse to HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Class\{4D36E968-E325-11CE-BFC1-08002BE10318}\0000
3. Put in the following settings (you should have these entries already. I did not have one or two, so I simply added them as a NEW > String Value):-
"MLF_NA"="0"
"EnableUlps_NA"="0"
"SurfaceFormatReplacements_NA"="0"
"TFQ_NA"="0"
"TextureLod_NA"="0"
"DXVA_WMV_NA"="0"
4. Within the same location, expand out ...\0000 and drill down to UMD. (i.e. HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Class\{4D36E968-E325-11CE-BFC1-08002BE10318}\0000\UMD)
5. Put in the following settings (again, most of these I had and most were set correctly):-
"MLF_DEF"="0"
"EnableUlps_DEF"="0"
"SurfaceFormatReplacements_DEF"="0"
"TFQ_DEF"="1"
"AntiAliasSamples_SET"= "0,2,4,8"
"AntiAlias_DEF"="1"
"AntiAliasSamples_DEF"="0"
"AntiAliasMapping_SET"="0(0:0,1:0) 2(0:2,1:2) 4(0:4,1:4) 8(0:8,1:8,2:16)"
6. Repeat the above two steps, but this time in a slightly different location. For me, I found this location by myself. The original instructions did not help me here. I went to HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Video and could not find the folder listed. BUT, if you simply expand the keys out (I had 5 sub-folders within ...\Video) you will find one that has all of the same options you saw previously. The other locations, have very little in them, so that's how I knew which to choose. So in the end, I settled on HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Video\{0307D824-4705-4DA4-AB1A-86192E5EC04C}.
7. You will have a ...\0000 folder and a ...\0001 folder. And again, simply apply the settings from step 3 in here.
8. Within each of them you have the ...\UMD folder. Again, apply the settings from step 5 in here.
======
For info... For those with a 4850 GPU, the original instructions listed these as the Reg location:-
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Class\{4D36E968-E325-11CE-BFC1-08002BE10318}\0005\UMD
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Video\{BD1512B5-6B3B-441F-B26B-DAC6BCA75AB0}\0000\UMD
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Video\{BD1512B5-6B3B-441F-B26B-DAC6BCA75AB0}\0001\UMD
As I say, these were no good for me.
======
-----
That's it! Reboot the PC and you should get....
-----
Now... off to test some games!
Thanks.
http://forums.overclockers.co.uk/showthread.php?t=18199788
Post #277 by KNiVES explains this process, however, it is not very clear as it is taken from a German translation, so here is a tidy version.


MLAA on 4870 GPU
I have installed the 10.10c hotfix drivers and I run Win7 64-bit with a 4870 GPU.
1. Download the fixed package. - http://www.mediafire.com/?5h6cpooivo4sbox
2. Extract to a folder on your PC. (I use 7-Zip)
3. Extract Setup.exe. (Again, I use 7-Zip)
4. When I extracted Setup.exe, it did it in the same folder. So I then simply browsed to ...\Packages\Drivers\Display\W76A_INF\B107032.
5. Take out "atiumdag.dl_" and place somewhere easy, say on your desktop.
6. Run a CMD prompt (as Admin). Do a change directory (CD) to your desktop location and enter, "expand atiumdag.dl_ atiumdag.dll"
7. You should now have "atiumdag.dll" on your desktop. Place this into C:\Windows\SYSWOW64. (Re-name the original file just in case).
-----
OK, so that's the file copy done. Now we need to alter a few settings in the Registry. I'd recommend taking a backup, just in case you want to revert back easily.
This is where it's slightly tricky. The original suggested Reg locations were different for me. It looks like they differ depending if you have a 4850 or a 4870. So these steps below are what worked for me.
-----
1. Open up Regedit.
2. Browse to HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Class\{4D36E968-E325-11CE-BFC1-08002BE10318}\0000
3. Put in the following settings (you should have these entries already. I did not have one or two, so I simply added them as a NEW > String Value):-
"MLF_NA"="0"
"EnableUlps_NA"="0"
"SurfaceFormatReplacements_NA"="0"
"TFQ_NA"="0"
"TextureLod_NA"="0"
"DXVA_WMV_NA"="0"
4. Within the same location, expand out ...\0000 and drill down to UMD. (i.e. HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Class\{4D36E968-E325-11CE-BFC1-08002BE10318}\0000\UMD)
5. Put in the following settings (again, most of these I had and most were set correctly):-
"MLF_DEF"="0"
"EnableUlps_DEF"="0"
"SurfaceFormatReplacements_DEF"="0"
"TFQ_DEF"="1"
"AntiAliasSamples_SET"= "0,2,4,8"
"AntiAlias_DEF"="1"
"AntiAliasSamples_DEF"="0"
"AntiAliasMapping_SET"="0(0:0,1:0) 2(0:2,1:2) 4(0:4,1:4) 8(0:8,1:8,2:16)"
6. Repeat the above two steps, but this time in a slightly different location. For me, I found this location by myself. The original instructions did not help me here. I went to HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Video and could not find the folder listed. BUT, if you simply expand the keys out (I had 5 sub-folders within ...\Video) you will find one that has all of the same options you saw previously. The other locations, have very little in them, so that's how I knew which to choose. So in the end, I settled on HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Video\{0307D824-4705-4DA4-AB1A-86192E5EC04C}.
7. You will have a ...\0000 folder and a ...\0001 folder. And again, simply apply the settings from step 3 in here.
8. Within each of them you have the ...\UMD folder. Again, apply the settings from step 5 in here.
======
For info... For those with a 4850 GPU, the original instructions listed these as the Reg location:-
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Class\{4D36E968-E325-11CE-BFC1-08002BE10318}\0005\UMD
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Video\{BD1512B5-6B3B-441F-B26B-DAC6BCA75AB0}\0000\UMD
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Video\{BD1512B5-6B3B-441F-B26B-DAC6BCA75AB0}\0001\UMD
As I say, these were no good for me.
======
-----
That's it! Reboot the PC and you should get....

-----
Now... off to test some games!

Thanks.
Last edited: