[Bug 20599] City of Heroes fails to detect Nvidia driver version

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=20599





--- Comment #2 from Mark Wagner <mark.wagner17 at gte.net>  2009-11-07 18:19:49 ---
More information:

City of Heroes determines the video driver version by inspecting the driver
.dll (for the current Nvidia drivers, this would be nv4_disp.dll in the
Windows\System32 directory).  It finds this file by inspecting the registry key
HKLM\HARDWARE\DEVICEMAP\VIDEO for a string value named \Device\Video0.  It then
uses that value (on my system,
"\Registry\Machine\System\CurrentControlSet\Control\Video\{09848A9D-1AF4-42ED-9713-D4EFC8707D6E}\0000")
as the path to a REG_MULTISZ value named "InstalledDisplayDrivers" that
specifies the driver file without extension.

Providing a nv4_disp.dll file and the related registry entries eliminates the
"driver version" warnings.

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