I'm using Intel Matrix Manager (IATA88ENU.exe) and it works fine in both Windows 7 build 7100 (RC) x86 and x64.

I'm curious as to "How" you installed these drivers because they are not listed as compatible with the RC doing the pre-install method.
And, when I went ahead anyways & installed them it crashed the installation process to where I had to start all over again without them.
Now, I can install the manually after the the RC installation is complete via Device Manager, but...then I loose the other drivers to where I can't switch from AHCI to IDE mode on the drives which is actually has faster access times than AHCI when running single drive configurations.
What chipset & drive configuration are you running?
IDE
AHCI
RAID
My system specs are below.
So the question is, how did you install these drivers & what version are they as the newest for my board is STOR_allOS_8.7.0.1007_PV.exe 1/9/2009.
i have Intel Board, but it cant install any IATA**ENU.exe's ... not older ones or new ome's. Earlier i could do it ( With XP SP2 and Vista 64 )
How did you installed that driver, what were your BIOS settings ???
or did you upgrade Win7 to max and then installed it ?
Kari

Thanks Muff1n, now it works....
i was stupid - it's the same thing that i had to do with my first Vista 64 - install. With XP i had to write some regkey's (with help, of course)
Now i just need to install Acronis back and voilá : Dualboot Win7 + OSX
Kari

I cannot get the 7 ultimate 64 bit to install on my new laptop. I get: "A required CD/DVD drive device driver is missing. If you have a driver floppy..."
I got to this forum by googling: Intel® Matrix Storage Technology + "windows 7"
I cannot get these drivers to load for this machine at all during setup/install. I have changed the BIOS to be IDE, AHCI, RAID with no joy. Any quick suggestions to point me in the right direction?
Thanks a lot for the quick replies.
It's "Mobile Intel® PM45 Express Chipset" in a HP Elitebook 8730W, but I got here looking for the search: Intel® Matrix Storage Technology + "windows 7". I have the original CD from HP, but it will not pull the drivers off of it as it is for Vista 32bit or XP.
I took the .iso for 7 off of Technet and burned it with ImgBurn at the highest speed on a crappy DVD so perhaps there is something to your post pbcopter.
I will try a new burn and post the results; thanks a bunch!