- EBP and ESP are sometimes corrupted while running 16-bit code.
- Message flow is not correct for multiple tasks, some messages are not supported.
- Dialog Boxes created by WM_CREATE handler aren't visible
- MDI does not send WM_GETMINMAX message.
- InitializeLoadedDLLs() can't init LZEXPAND.DLL. (cs:ip => 0:0)
- LoadCursor does not correctly handle bitmap cursors
- AllocCSToDSAlias() shouldn't alloc alias for the same segment multiple times.
- Dialogs don't support resources which are referred to as integers.
- grep for FIXME in the source files.