https://bugs.winehq.org/show_bug.cgi?id=44562 Anastasius Focht <focht(a)gmx.net> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |focht(a)gmx.net Keywords| |dotnet --- Comment #4 from Anastasius Focht <focht(a)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/Per... 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 -- Do not reply to this email, post in Bugzilla using the above URL to reply. You are receiving this mail because: You are watching all bug changes.