In reply to your comment below (can't reply more than 6 deep), you can check http://steemd.com/@sonarous for "sonarous found a pow." Solving PoW puts you in the mining queue but it hasn't rewarded you yet. You have to keep your node running while your account is in queue. Steemd.com doesn't explicitly say if you've actually generated the block but you can keep a close eye on your VESTS balance with cli_wallet.exe.

There could be some kind of console monitoring program for Windows that you could use to log every time the word "generated" and phrase "proof of work" is output, but I don't know of one.

Here's what the console says when you enter the queue
th_a witness.cpp:504 operator() ] Broadcasting Proof of Work for pfunk
And when you generate the block and leave the queue
th_a witness.cpp:256 block_production_loo ] Generated block #XXXXXX with timestamp 2016-05-29TXX:XX:XX at time 2016-05-29TXX:XX:XX by pfunk