Hi, A preview of Hat for Windows is available at: http://www.cs.york.ac.uk/fp/temp/hat-win32-05_jul_2006.zip All hat utilities are available and seem to work apart from: hat-explore - advanced escape codes, looks pretty hard to get round hat-anim - escape codes, might be able to work round hat-detect - tries to spawn an xterm In addition, there is also hat-make, which is windows only hmake -hat alternative. Instructions for installing ================= Extract the contents of the .zip file into a folder preserving directory structure. Add the folder containing hat-make to your %PATH% variable, this is 100% required, even if you give the explicit path to hat-make when you use it. Make sure ghc is available on your system and has been added to the %PATH%. Instructions for use ============== cd to the directory containing your Haskell source hat-make Main.hs main <arguments> hat-stack Main.hat hat-observe Main.hat etc. I have tested the programs, and they all work quite well - I have not run into any limitations beyond those which happen on Hat on Linux as well. Thanks Neil