[Bug 49350] New: Silverlight 5.1 installer no longer works

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=49350

Bug ID: 49350
           Summary: Silverlight 5.1 installer no longer works
           Product: Wine
           Version: 5.10
          Hardware: x86
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: msi
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

Steps to reproduce:
wget
http://silverlight.dlservice.microsoft.com/download/B/A/9/BA94BEC9-5DBC-4B50...;
rm -rf ~/.wine;
WINEARCH=win32 wine Silverlight.exe /q /doNotRequireDRMPrompt /noupdate;
ls ~/".wine/drive_c/Program Files/Microsoft Silverlight" >/dev/null && echo
success || echo failure

Note: same happens if you run the GUI (without flags), but this makes it easier
to reproduce.

===
808f3158bbcf229d6eb935a7afe7291e9152ce1a is the first bad commit
commit 808f3158bbcf229d6eb935a7afe7291e9152ce1a
Author: Piotr Caban 
Date:   Fri Oct 20 22:18:41 2017 +0200

msi: Improve installation with no argument of already installed product.

Signed-off-by: Piotr Caban 
    Signed-off-by: Hans Leidekker 
    Signed-off-by: Alexandre Julliard 
===