How is this question a botnet? Some people are just foolishness itself!
Your code is not complete as you will need to connect to a remote pool with your socket, or you'll need to interface with getblocktemplate if you are running a local node.
Why would anyone write a CPU miner on windows?
It's pointless except to make a botnet.
(though a botnet would require probably 50,000 computers just to equal a 1TH miner)
I even had someone come to my pool channel yesterday saying he had a botnet ot 143,000 computers and where can he get a CPU miner.
Of course I kicked him and banned him (he was using a vpn so there was no point trying to work out where he was from)
Seriously, an obvious question with an obvious reason.
Since it has no use whatsoever, write an ASIC miner that uses a $2 USB miner and see if you can get that to work.