Actually, there is not a 64 bit *executable* - however, the driver
(SPTD.sys) now supports both 32-bit and 64-bit OSs, so that you can install DT on both architectures.
IOW, it is *compatible* - not native. The reason is that DT is not jus ta program, but actually a program that works in conjunction with a driver - and 64bit OSs *require* 64bit drivers
, something that DT Was lacking for a long time.
I just had an issue with it, though - been using it on Windows 7 Ultimate RTM 64bit at home with no issues - but tried to install it to my laptop, Windows 7 Ultimate RTM 32bit and after isntalling the sptd.sys and rebooting the OS goes into a reboot loop with a BSOD. I just checked the disc-tools.cc website, and noticed the latest SPTD drivers are actually at v1.60 - so I am going to try pre-installing that and then installing DT to see if it makes a difference.
The problem could be a conflict with HP Protect tools (don't think so, but....who knows) or even b/c I upgraded the laptop from Windows Vista 32bit to Windows 7 (as it installs all the drivers and such for me I figured this was going to be the easier route). If this doesn't work then I am formatting and installing Windows 7 Ultimate x64 on this puppy just so I can have DT working correctly. It only has 2 GB right now but I am going to get another 2 gb if I need to format and install x64 clean OOB.
Incidentally, there was a thread either here or on Vista x64 when we were all clamoring for the x64 support as well as when we were all clamoring for Windows 7 support....(might have been 2 separate threads, IIRC)