https://bugs.winehq.org/show_bug.cgi?id=37751
--- Comment #9 from Vincent Povirk madewokherd@gmail.com --- Yep, the COM wrapper is still wrong, but it's easily fixable now. With that fixed, I get:
[0000002B: 0.00068 1] ENTER: (wrapper cominterop) System._AppDomain:CreateInstance (intptr,string,string,System.Runtime.Remoting.ObjectHandle&)(027964C0, [STRING:010AC720:BootstrapperCore, Version=3.0.0.0, Culture=neutral, PublicKeyToken=ce35f76fcda82bad], [STRING:010AC7D8:Microsoft.Tools.WindowsInstallerXml.Bootstrapper.BootstrapperApplicationFactory], [BYREF:0032F6D8], ) [0000002B:] EXCEPTION handling: System.IO.FileNotFoundException: Could not load the file 'BootstrapperCore, Version=3.0.0.0, Culture=neutral, PublicKeyToken=ce35f76fcda82bad'.
This makes a lot more sense. Not sure why BootstrapperCore isn't found.