[Bug 22774] New: DirectX installer very slow on wine

http://bugs.winehq.org/show_bug.cgi?id=22774

Summary: DirectX installer very slow on wine
           Product: Wine
           Version: 1.1.44
          Platform: x86
        OS/Version: Linux
            Status: NEW
          Keywords: download, Installer
          Severity: normal
          Priority: P2
         Component: -unknown
        AssignedTo: [e-mail]
        ReportedBy: [e-mail]

It takes quite a few minutes for the DirectX installer to run.
This matters because it's invoked by many game installers,
and before first run of some games (e.g. CODMW2) on Steam.
The load average while it's running is close to zero.

One thread in it seems to be doing a Sleep(5000) frequently,
after which another thread does some message pumping for a second or so.
windows/logs/DirectX.log is slowly outputting a series of lines like

...
05/19/10 10:23:37: dxupdate: CFusion::GetAssemblyList():
Microsoft.DirectX.AudioVideoPlayback:31bf3856ad364e35:31bf3856ad364e35 is not
there.
05/19/10 10:23:42: dxupdate: CMDXInstall::Install(): no update in GAC.
05/19/10 10:23:42: dxupdate: CMDXInstall::Install():
Microsoft.DirectX.Diagnostics
05/19/10 10:23:42: dxupdate: Installed assembly Microsoft.DirectX.Diagnostics
05/19/10 10:23:42: dxupdate: CFusion::GetAssemblyList():
Microsoft.DirectX.Diagnostics:31bf3856ad364e35:31bf3856ad364e35 is not there.
05/19/10 10:23:47: dxupdate: CFusion::GetAssemblyList():
Microsoft.DirectX.Diagnostics:31bf3856ad364e35:31bf3856ad364e35 is not there.
05/19/10 10:23:52: dxupdate: CFusion::GetAssemblyList():
Microsoft.DirectX.Diagnostics:31bf3856ad364e35:31bf3856ad364e35 is not there.
05/19/10 10:23:57: dxupdate: CFusion::GetAssemblyList():
Microsoft.DirectX.Diagnostics:31bf3856ad364e35:31bf3856ad364e35 is not there.
05/19/10 10:24:02: dxupdate: CFusion::GetAssemblyList():
Microsoft.DirectX.Diagnostics:31bf3856ad364e35:31bf3856ad364e35 is not there.
05/19/10 10:24:07: dxupdate: CMDXInstall::Install(): no update in GAC.
05/19/10 10:24:07: dxupdate: CMDXInstall::Install(): Microsoft.DirectX.Direct3D
05/19/10 10:24:07: dxupdate: Installed assembly Microsoft.DirectX.Direct3D
05/19/10 10:24:07: dxupdate: CFusion::GetAssemblyList():
Microsoft.DirectX.Direct3D:31bf3856ad364e35:31bf3856ad364e35 is not there.
05/19/10 10:24:12: dxupdate: CFusion::GetAssemblyList():
Microsoft.DirectX.Direct3D:31bf3856ad364e35:31bf3856ad364e35 is not there.
05/19/10 10:24:17: dxupdate: CFusion::GetAssemblyList():
Microsoft.DirectX.Direct3D:31bf3856ad364e35:31bf3856ad364e35 is not there.
05/19/10 10:24:22: dxupdate: CFusion::GetAssemblyList():
Microsoft.DirectX.Direct3D:31bf3856ad364e35:31bf3856ad364e35 is not there.
05/19/10 10:24:27: dxupdate: CFusion::GetAssemblyList():
Microsoft.DirectX.Direct3D:31bf3856ad364e35:31bf3856ad364e35 is not there.
05/19/10 10:24:32: dxupdate: CMDXInstall::Install(): no update in GAC.
05/19/10 10:24:32: dxupdate: CMDXInstall::Install():
Microsoft.DirectX.Direct3DX
05/19/10 10:24:32: dxupdate: CFusion::GetAssemblyList():
Microsoft.DirectX.Direct3DX:31bf3856ad364e35:31bf3856ad364e35 is not there.
...

Can we trick the installer into not installing anything, and thereby
completing quickly, by setting some registry values?