Install MinGW
Install msys
Install msysDTK
add c:\mingw\bin to path
EDIT C:\msys\1.0\etc\profile and set HOME to be non spaced NB you dont have to do this if your home dir does not contain spaces
Fire up msys and check the fstab entry is c:\mingw
Run install.sh
Run extract.sh up to libpng
Get gtk bundle from here and install in c:\gtk and add c:\gtk\bin to PATH
Compile up libpng and fltk
fluid.exe should now run 🙂