As you can see Macworld reports that paragon is giving away their software HFS for windows 7.5 today, for free. And who doesn't like free? Only giving away 50,000 licenses get it while it's available. If you don't want to go to Macworld the link to their page is here, available in 32 and 64 bit flavors!
According to their website "HFS for Windows enables the use of Mac-formatted partitions in Windows operating systems. Utilizing Paragon’s own unique technology – the Universal File System Driver (UFSD), Paragon’s HFS for Windows is able to extend the boundaries of Microsoft Windows’ scalability and interoperability." If only I could get their NTFS software for mac (I don't want to use macfuse).