I think that as Win7 圆4 seems to enforce a signed driver model (and 32 bit does not) that perhaps there is less likely to be anything else messing around at the low level I/O to cause the kind of errors people have seen (though that's just supposition with no evidence).
That said I am mainly in OSX, and I tend to keep my OSX boot partitions on separate physical volumes from my Windows ones, but I have made changes in both directions and sometimes have had a majority of NTFS volumes sometimes a majority of HFS+ ones. I also use the NTFS driver on the OSX side, also without issues. I have previously used MacDrive and that is a PITA. I've been using HFS+ 9.0 on my Win7 Pro 圆4 (dual boots OSx 10.6 & recently 10.9) Core2 based hackintosh for a number of years with no issues. I advise any dual HFS NTFS booters to stay away from this product. As far as I'm concerned trashing someones drive is a serious offense!" So I don't know why I installed this HFS utility considering what happened before, and I can tell you that I no longer trust Paragon with my data.
Had to upgrade to the HDM Suite Pro with a newer engine to fix this problem. The first being Paragon Partition Manager Pro crashing upon seeing an ntfs - HFS hybrid guid multi parition drive. This is the second issue I have had with a Paragon product in a month. So I wasn't a hundred percent sure it was that utility so I copied my good partition to another drive on my system and installed the HFS Windows utility again and got an immediate BSOD upon boot! I mean who do these guys hire to do their programming? High school drop outs? Who is doing the beta testing? Is there any quality control here?! This is ridiculous! To make matters worse I couldn't uninstall it and had data corruption and had to revert back to my last april backup loosing data. I googled it and found it to be a Paragon file. I thus rebooted and went into event viewer ( was hard as bsod were popping up) and saw that some file called uim something. "Few days ago I installed HFS+ for Windows, then the other day I noticed that my system blue screened upon shutting of siting error in fltmgr.sys. This is a repost of a complaint I posted in the Wilders Security Forums which fields Paragon software issues: