https://bugs.winehq.org/show_bug.cgi?id=48061
--- Comment #2 from François Gouget fgouget@codeweavers.com --- The "mfplat=load error 1359" error is legitimate on Windows XP.
It happens because mfplat_test.exe imports d3d11.dll which is missing. This triggers a #32770 dialog saying so and blocks the process. As a result WineTest.exe does not get the subtest list and issues the 'load error 1359' error.
Obviously the other random errors, such as with shell32, have a different cause.