Setting up COM buffers

I was pointed to this today to set the size of serial buffers on WinCE:

 BOOL SetupComm(     HANDLE hFile,   DWORD dwInQueue,     DWORD dwOutQueue   );

This should control the internal buffer sizes for the COM port... but the amusing comment in MSDN says:

 Always returns FALSE because the FIFO queue size cannot be changed

Err... so does this work!?