In my test MSI, the files are supposed to be in alphabetical order,
not in 'whatever order lcab enumerated the Unix directory I pointed it
at' order. The test MSI didn't install, but with this change, it does,
so my guess is that either the real Windows installer system depends
on the alphabetical order for a search algorithm, or else files in the
cab are referred to by a numeric index of some kind.
If I compile this to Linux native code, and then run WiX under Mono,
it loads this library and gets past the first CabExtract call, so I
can find out what the next problem turns out to be.
