okay the answer is - YES!
goto bitminer. Sign up. download their java client. Let'er rip!
You will see something like .00000000001 BTC per day, but there you have it!
Maybe you could pull between 3-7 KH/s using a CPU.
If you absolutely must mine -
then consider buying a block erupter for maybe 10 dollars and use that to mine with on bitminter.
The bitminter java applet does detect cpu and integrated graphics (the last time I used it was last year though so I could be wrong). It is the most painless way to begin mining bitcoin.
The manual way would be to use something like BFGminer. No software you download will make you mine any faster which is why you see people using external hardware to mine now a days. I suggest the block erupter as the cheapest way to get into bitcoin mining although it will likely not make its money back. (expect a lifetime profit of maybe 30 to 60 cents for that 5 dollars invested)
I've written about mining multiple times here, on reddit and
on my own storefront blog here if you're interested in more information.
