[Haskell-cafe] Blocking problem reading a handle

Hi, cafe, all I want is to read the unread portion of a handle, without blocking waiting for an EOF or a newline. My first attempt was to try with hGetBufNonBlocking from System.IO, and other functions that use it in its definition (directly or indirectly). But, unfortunately: hGetBufNonBlocking doesn't work on Windows: http://hackage.haskell.org/trac/ghc/ticket/806 This was a bad surprise. How can achieve my purpose without hGetBufNonBlocking? Thanks in advance, Daniel Díaz