[Bug 52542] New: NVIDIA GeForceNow Installer fails due to rundll32 problems

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=52542

            Bug ID: 52542
           Summary: NVIDIA GeForceNow Installer fails due to rundll32
                    problems
           Product: Wine
           Version: 7.1
          Hardware: x86-64
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: -unknown
          Assignee: wine-bugs at winehq.org
          Reporter: dark.shadow4 at web.de
      Distribution: ---

Created attachment 71855
  --> https://bugs.winehq.org/attachment.cgi?id=71855
Hack

Mostly for bookkeeping, I have it on my ToDo somewhere, although feel free to
take it. But please mention when you want to work on this.

The installer tries to use rundll32 to let a dll generate the config. The exact
commandline is

> trace:rundll32:wWinMain CmdLine=L"C:\\users\\fabian\\Temp\\GeForceNOWInstallerTemp\\GeforceNOW\\NvConfigGenerator.dll ,GenerateConfigs

Notice the space before the comma, that's what causes the problem. Wine doesn't
handle that properly.
Attaching a hack to work around the issue.

Warning:
It seems like you need to set that byte to 0 (see patch). Just skipping the
space lets it find the function, but it won't work due to being passed
unexpected parameters!

Also be aware, that the installer also tries to call system32/rundll32.exe
which is 64bit with a 32bit dll. So to test this, you need to take that into
account, else rundll32 will fail to load the dll, nevermind load the entry
point.

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