No Audio Device are installed

I was messing with my recently downloaded hypercam and wanted to disable the Michrophone, so that I could record system sound and not my voice, but I think I accidently removed the mic? I wen't into " configure " and chose disable, but when I was done with hypercam I wen't back into Sound options and into the recording tab and I got this message
" No Audio devices are installed" did I un-installed it by accident? I googled and found some link's but I don't want to screw up again and wanted to check with someone on here thats more savy when it comes to these thingsDo I need to reinstall the Audio devices? and is this the correct Link?
http://www.softwarepatch.com/utilities/ac97-realtek-driver-vista.html
I'm using vista.I also, get the same message when I try using both audicity and camtasia.Thanks in advance.
Post Merge: [time]1267319170[/time]
nevermind I fixed my problemIGNORE THIS THREAD
I would lock it up if i could but i'm not a mod.