Karaoke on PC

[PJS]

I have several karaoke DVD's and would like to set up my computer for my child to use with the DVD's.

I have a normal microfone and run Windows Vista.

How can I set up my computer in such a way that she can play the DVD and then use the microfone at the same time. Obviously in such a way that she can hear both her own voice and the song over the speakers?

Thanks

PJS

 

[NoRulez]

Most soundcards have a software mixer interface. In the sound mixer interface, enable mic as recording device and select monitor/listen on this device.