OpenGL in Windows 7 with legacy ATI Geforce x1900 GT

I tried to get OpenGL working in Windows 7 x64 using a legacy ATI Geforce x1900 GT graphic card. I was not able to install the currently available Vista/Win7 64bit drivers (Catalyst 9.3). There were some problems all the time I tried to install the driver.

After some research I found the solution in modifying the catalyst driver to get it working. So let me describe the progress…

• Download the driver 9-3_vista64_win7_64_dd_ccc_wdm_enu.exe from the ATI driver page (URL)
• Start the regular setup but cancel after it extracted all files (When the black window occurs)
• Then download the Mobility Modder (URL)
• Installed the Mobility Modder to “C:\Program Files (x86)\MobilityDotNET”. Then download a patched MobilityDotNET.exe (URL)
• Start the Mobility Modder “C:\Program Files (x86)\MobilityDotNET\MobilityDotNET.exe”. In the Mobility Modder set the path pointing to the extracted driver “C:\ATI\Support\9_3_vista64_win7_64_dd_ccc_wdm_enu” and hit the button “Modify”. After that close the Mobility Modder. You may also uninstall it
• After that move to the directory “C:\ATI\Support\9_3_vista64_win7_64_dd_ccc_wdm_enu\Driver\Packages\Drivers\Display\LH6A_INF” in explorer and open CH_76829.inf in notepad. Search for “[ATI.Mfg.NTamd64.6.0]” in the file and replace it with “[ATI.Mfg.NTamd64.6.1]“
• Now open the device manager (Windows > Control Panel > System > Device Manager) and move to “display adapter > Radeon X1900 GT”
• Right click on the device and a click on “Update Driver Software > Browse my computer for driver software > Let me pick… > Have Disk… > Browse to “C:\ATI\Support\9_3_vista64_win7_64_dd_ccc_wdm_enu\Driver\Packages\Drivers\Display\LH6A_INF” > Select CH_76829.inf
• Now simply install the OpenGL driver

A reboot was not necessary to driver loaded and working. I was immediately able to play my old OpenGL games like Unreal Turnament / Tactical Ops / HalfLife / Counterstrike / Day of Defeat / … Good old times .