You can find Windows builds of the "RdB" jhPrimeminer here:
https://www.dropbox.com/sh/sq24hzo993afy9c/l7icP0KiuMI have no idea how trustworthy they are, but I've been using them for the past two weeks with no issues. The "RdBBeta4.0F2_x64" version seems to work the best on my AMD 1055t clocked at just over 3GHz.
I'm launching it with:
jhprimeminer.exe -o http://ypool.net:10034 -u username -p password -m 61 -target 9 -bttarget 9
And getting:
MNPS:355.17 PPS:41693 WPS:23.124 ACC:1803
ASdJwdF3n82cHUih3fyn99djA3QRwBHyhQ