I agree with Chubakke. However I would also try using audacity (Free, link - http://audacity.sourceforge.net/
) What kind of mic is it? Is it plugging in though USB? If so that never works for me. Get a mic that plugs into your sound card directly. With my setup I have a cheap $25 from radio shack, but I route through my guitar amp, to my soundcard, and I record music as a side job and mix it. The mic doesn't have to be a good once as you can tell. If it is a usb mic, google "Asio4All" and that should clear it up.
I notice you say you have a basic soundcard. Do you mean integrated? Like soldiered to the MOBO? I have a dedicated sound card, like the difference between integrated graphics and a dedicated graphics card. You can get a soundcard for $25-$65 I highly recommend one if you record, even just a little bit.