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CreateProcess and not setting lpApplicationName to NULL, is to duplicate the
exe name at the start of lpCommandline.

CommandLineToArgvW behaves in exactly the same fashion in wine, mimicking this
odd behaviour.

The problem occurs because in wine msiexec has its own implementation
"process_args" which does not observe this quirky behaviour.

Using CommandLineToArgvW in msiexec will fix this, but breaks the xlviewer
installer since it does not reconstruct the argv correctly for msiexec to be
able to use the arguments. See bug 9628 for the broken argv input.

So unless CommandLineToArgvW has a bug in the case of the xlviewer installer,
msiexec will need to either modify process_args to take a space as the first
character on the command line as a special case, same as CommandLineToArgvW, or
use CommandLineToArgvW and modify the returned argv to correctly put together
any broken path arguments.


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