Hey Batman,

That is probably a Very Bad Idea^TM
What you are asking is to use a CPU for mining a scrypt based coin when there are asic miners out there doing the same. You will have very little returns on your investment, so I would advise you to look at a different alternative:

Why not look into a cloud mining solution, for example hashlets at GAWminers (see link in my signature), and use the BTC profits from there to buy your Dogecoin on an exchange. Right now you cannot receive payouts in DOGE, but GAWminers have said that this kind of feature will come later on (payouts are only possible in BTC right now).

If you go this route, let me know if you need more help. If you use my referral link I'll get you a 1.5% discount.