[Bug 44562] .NET 4.x - rundll32.exe - Error messages when running any application

[wine-bugs at winehq.org]

https://bugs.winehq.org/show_bug.cgi?id=44562

Anastasius Focht <focht at gmx.net> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |focht at gmx.net
           Keywords|                            |dotnet

--- Comment #4 from Anastasius Focht <focht at gmx.net> ---
Hello folks,

I guess you are talking about 'Unable to find a version of the runtime to run
this application' errors?
Your list contains .NET Framework 4.0 and 4.5 but not any earlier version.

Since left out the important information which apps/games
(executables/versions) actually trigger the message I can only guess these are
.NET "legacy" apps present in your WINEPREFIX that were developed/built against
older versions of .NET Frameworks/CLR.

You could try to add proper 'useLegacyV2RuntimeActivationPolicy' settings for
all affected .NET legacy app .config files (or create if not present) 

--- snip ---
<?xml version="1.0"?>
<configuration>
  <startup useLegacyV2RuntimeActivationPolicy="true">
    <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.0"/>
  </startup>
</configuration>
--- snip ---

Technical information about the setting:

http://web.archive.org/web/20130128072944/http://www.marklio.com/marklio/PermaLink,guid,ecc34c3c-be44-4422-86b7-900900e451f9.aspx

CLR runtime/version matrix:

https://msdn.microsoft.com/en-us/magazine/ee819091.aspx 

IMHO the bug is INVALID. This is not a Wine problem.

The same problem would exist with vanilla Windows XP/Vista with no prior .NET
Frameworks (2.0, 3.5, SP1/2) installed.

Regards

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