Spectrasonics 
http://www.spectrasonics.net/ 
The "NEW" Omnisphere, is out now! VISTA READY! A great special upgrade price for all Atmosphere users, Now available! 
Native VISTA 64bit version of Omnisphere are planned and will soon be released in a update.... 
http://www.spectrasonics.net/instruments/omnisphere.html 
Atmosphere, Xp32bit version *known to work 
Stylus RMX, Xp32bit version *known to work 
Native Instruments 
http://www.native-instruments.com/ 
Kontakt 3, Native VISTA 64bit version *Released in Autumn, 2008 
The new FREE "64bit" - Kontakt 3.1 update will include the following improvements: 
New and improved features: 
* Compatibility with Windows Vista 64 (XP 64 tbd) 
* 64-bit memory addressing for Mac OS X and Windows Vista 64 
* Full Unicode support 
* Improved automapping 
* Pro Tools compatibility under Mac OS X 10.5 Leopard 
* Localized info pane in six languages 
Fixes: 
* Several fixes and stability improvements 
This list is subject to change, and does not necessarily list all features and fixes that will be in the final update. 
Kontakt 3 update with 64-bit memory addressing confirmed 
Hi everybody, 
I want to bring you the good news that NI has started development on a Kontakt version that supports 64-bit memory addressing for Mac OS X 10.5 and Windows Vista 64. 
This will be a free update for Kontakt 3, and will allow to go beyond the 32-bit memory addressing limit and utilize as much RAM as your operating system or host makes available. 
This version of Kontakt 3 will also run as a VST plugin under 64-bit hosts in Windows Vista 64 (Windows XP 64 will likely not be supported; standalone and 32-bit plugin operation under Vista 64bit are already possible with Kontakt 3.0.1). 
No specific info on the release date yet, but you can expect it sometime in the second half of 2008. It is a substantial development effort and requires a lot of testing and optimization. 
I will keep you posted about upcoming milestones of this update. 
Regards, Thomas 
Rest of the NI software products, Vista 32bit Versions *known to work 
Audio Kontrol 1, No VISTA 64bit or XP64bit drivers!  
http://www.native-instruments.com/index.php?id=audiokontrol1&L=1 
NI Support: Windows Vista 64-bit with certain limitations, which are detailed below. Native Instruments does not guarantee the operation of its products under Windows Vista 64-bit at this time. 
http://www.native-instruments.com/index.php?id=vista&L=1 
NI Support: NI software will generally run as plug-ins under Vista 64-bit within host applications that accept 32-bit plug-ins. 
Celemony 
http://www.celemony.com/cms/ 
Melodyne 3 (Software), VISTA 32bit version *known to work 
Melodyne 3 plugin, VISTA 32bit version *known to work 
Melodyne Uno, VISTA 32bit version 'known to work (also XP64) 
Tascam 
http://www.tascam.com/ 
FW-1082, Native VISTA 64bit & XP64bit drivers 
FW-1884, Native VISTA 64bit & XP64bit drivers 
US-244, Native VISTA 64bit & XP64bit drivers *known to work 
http://www.tascam.com/products/us-224;9,15,137,14.html 
Fireone, only XP32 driver 
US-1641, only VISTA 32bit & XP32bit drivers 
Sony Creative Software  
http://www.sonycreativesoftware.com/ 
Sound Forge 9, Support all VISTA versions *known to work 
Sony Vegas 8.1, Support all VISTA versions *known to work 
Vegas Pro 8, Support all VISTA versions, also 64bit version *known to work 
ACID Pro 6, Support all VISTA versions 
UAD - Unviersal Audio  
http://www.uaudio.com/ 
All UAD cards in Native VISTA 64bit & XP64bit drivers 
RME  
http://www.rme-audio.de/en_index.php 
All hardware in Native VISTA 64bit drivers & XP64bit 
*not old 
MOTU  
http://www.motu.com/ 
All hardware in Native VISTA 64bit drivers 
MachFive2 - Works Vista 64/XP64 (32Bit) 
Electric Keys Works - Vista 64 (will not install XP64) (32Bit) 
Focusrite 
http://www.focusrite.com/ 
Liquid MIX, Native VISTA 64bit driver 
SAFFIRE PRO 26 I/O, Native VISTA 64bit driver 
SAFFIRE PRO 10 I/O, Native VISTA 64bit driver 
VISTA 64bit drivers *not all there products  
Presonus 
http://www.presonus.com/ 
Presonus FP10, Native VISTA 64bit driver 
Presonus Faderport, XP 32bit version *known to work 
M-Audio 
http://www.m-audio.com/ 
Profire Lightbridge VISTA 64bit BETA driver 
ProjectMIX I/O VISTA 64bit BETA driver 
Ozonic VISTA 64bit BETA driver & XP 64bit BETA driver 
NRV10 VISTA 64bit BETA driver 
FireWire Series VISTA 64bit BETA driver & XP 64bit BETA driver 
Delta Series VISTA 64bit BETA driver & XP 64bit BETA driver *known to work 
CME-PRO 
http://www.cme-pro.com/ 
CME UF seriers - USB class compliant for Win XP and Mac OS X, supporting hot plug. No driver needed *known to work (no drivers needed) 
Matrix K FW 2.46.0 Windows XP 32/64 bit OS and Windows Vista 32/64 bit OS. 
Rest of products Windows2000/XP32 and some few in VISTA32 drivers. 
Lynx 
http://www.lynxstudio.com/index.asp 
Lynx AES16, Native VISTA 64bit driver 
Lynx AES16e PCI Express, Native VISTA 64bit driver 
Lexicon 
http://www.lexiconpro.com/ 
MX400, Native Vista 64 driver but not for XP64 
*hard to get any info about the drivers? 
EchoAudio  
http://www.echoaudio.com/ 
Echofirewire Series and others 
VISTA 64bit drivers 
Echo Digital Audio Layla3G *known to work with XP64bit 
Novation 
http://www.novationmusic.com/ 
Nocturn, Native VISTA 64bit driver 
Novation Remote SL, XP 32 driver *known to work 
Automap Universal *known to work in XP64bit 
"Black List" STAY away Company for Now!   
This is a list of Companies with very strange attitude to 64bit? They are NOT interested to provide any 64bit drivers or softwares now; nor in the nearest future; at this time. *these companies policy can change over time, hopefully!  
Access Virus 
http://www.access-music.de/ 
* It is extremly disappointing that Virus TI doesn't support Vista 64. Virus is the only piece of my gear that doesn't support it. 
Dear Access, why don't you just do that? I think you had to do it a long time ago. Look at other hardware manufactures. 
http://virusti.com/forum/index.php?act=ST&f=10&t=4077&hl= 
Waldorf Music 
http://www.waldorfmusic.de/en/home 
When Waldorf will start building VISTA versions of there plugins, is uncertain & unknown? 
Support only XP32bit! Not even VISTA32bit versions? 
Waldorf Edition, Xp32bit only (*Don't work with VISTA 64bit!) 
http://www.waldorfmusic.de/en/products/waldorf-edition 
The installer doesn't work on VISTA 64bit. Users of Waldorf Edition have report this problem and have asked for a new VISTA installer instead. Release date of this new installer is uncertain & unknown. 
TC Electronic 
http://www.tcelectronic.com/ 
PowerCore Platform, only XP32bit, not even VISTA 32bit? 
* Dear TC: Vista was released on November 30th, 2006. I'm sorry, but it defies logic that you're unable to release a working Vista driver in 18 months. I'm two weeks away from offering a brand new Powercore X8 for sale for a grand US. I'm going to consider the $499 I'll lose a lesson learned. I think that lesson should be fairly obvious. 
http://forum.tcelectronic.com/viewtopic.php?id=1295 
Audio Interfaces and the rest of Software and hardware Products from TC; only XP32bit (or VISTA 32bit if you are lucky) 
Studio Konnekt48 
http://www.tcelectronic.com/StudioKonnekt48.asp 
SUN 
http://www.sun.com/ 
Java.sun.microsystem, no native 64bit Java engine for 64bit browsers 
http://java.sun.com/javase/6/webnotes/install/system-configurations.html