also..don't know if this applies to win7/64 but i've had much better luck installing modules (with regard to nmake and mingw gcc) when cygwin is installed. windows becomes a more agreeable beast of burden for dev generally with cygwin installed. i obviously don't know your full situation but if there's any chance of running perl on linux/unix, you'll have better outcomes altogether, if you often find yourself reaching for modules. sure it's sometimes a pain with the extra compiling etc on non-windows platforms, but you don't end up with Mr Smith's quote running through your head instead..."this is a dead end". you could run a linux inside win7 vmware. anyway, it's getting right off the track. perl is happier on linux/unix i think.
the hardest line to type correctly is: stty erase ^H