Was able to install 2.1.16 onto my laptop with no issues other than the missing .dll file which was easily fixed due to posts on this forum...
However, when I connected my MPVI device, the drivers would not install. Vista gave me some BS about how the drivers were not digitally signed and therefore "no install". My interface would show up in the device manager as HP Tuners MPVI Channel's A and B but they had the yellow exclamation.
I uninstalled and tried to reinstall many, many times using the instructions on this forum, trying both the 64-bit drivers on my original CD (2.1.12) and the 64-bit drivers linked to on this forum but always would error out (code 39).
Long story short, I ended up at the FTDI website and found this combined driver model (D2XX and VCP) that is Microsoft WHQL Certified (at least up to xp64) LINK: http://www.ftdichip.com/Drivers/D2XX.htm (the file is called CDM_x64_setup.exe)
I installed the drivers manually, (like the Sticky: MPVI USB driver installation) and now my device shows up (without error) as USB serial converter A and B. The VCM Editor was then able to communicate with my MPVI device and pull the licensing information from it.
Finally, I connected the laptop to my car, did a "Read Entire" which was successful and also drove around using the VCM Scanner. Everything seems to be working and logging properly.
So, is this a legitimate solution or am I just some wacky computer scientist who's going to kill his ECM/TCM the next time he writes to it?
BTW
1. I turned off the lame "allow or deny" feature (called "User Account Control")
2. if you get "admin rights" issue, right click and select "run as admin"
3. problems installing xp software? Right click --> properties --> run in windows xp compatible mode (SP 2)