I’m sure that most everyone is interested in whether or not Dragon and/or VoiceComputer are compatible with Windows 10 Technical Preview and/or will be compatible with Windows 10 when it’s released.
The basic answer is YES, but there are some caveats:
(a) if you’re going to install Windows 10 Technical Preview on a brand-new system which does not have a previous version of Windows installed on it, be aware of the fact that DNS will not install without first installing the spchapi.exe (SAPI 4.0a). There are several ways that you can do this, the easiest of which is to go to the following folder on a currently installed version of Windows with DNS and select the following files. The files that you need to be concerned with all have the date 1/12/1999. I’ve listed them below. There are 15 files that must be copied and archived (i.e., zipped) and then extracted to the same folder under Windows 10.
Until you do this on a clean install of Windows 10 Technical Preview, DNS will not install and it will not run. Note that if this is your only option, it must be done correctly all files noted above.
My recommendation is that if you are not familiar with this process and you are not familiar with installing a preview version of Microsoft Windows, DON’T. Just one mistake will require that you start over again from scratch. Using this procedure is not recommended for novice users.
(b) The easiest and the safest way to install the Windows 10 Technical Preview is to do it on a system that already has a version of Windows 7 or 8/8.1 installed with DNS and/or VoiceComputer. However, and again, don’t do this on a working system that you need for work. Carefully follow all the instructions and be sure that you select the UPGRADE option. This version of Windows 10 can take upwards of several hours to download and install, so be patient. The UPGRADE option is very nicely designed and will upgrade your Windows 7/8/8.1 very nicely including all of your currently installed applications (i.e., including DNS and VoiceComputer). Microsoft warns you that you may have to reinstall some applications, but you can do that through the Repair option if that is available. I only experienced this with one app. Using the UPGRADE option will also ensure that most, if not all, of your drivers are properly upgraded/updated if necessary. My experience was that I did not have to upgrade or update any of my drivers once the UPGRADE was completed. In addition, the upgrade will work with both the 32-bit and 64-bit versions of Windows 7/8/8.1. If you use this approach, you do not need to uninstall DNS or VoiceComputer. Both will work properly after the UPGRADE.
© Lastly, there are some additional cautions:
My reason for testing with the Windows 10 Technical Preview is for the purpose of ensuring that DNS VoiceComputer work properly. They do and it was not necessary for me to uninstall DNS 13 prior to performing the upgrade to Windows 10 Technical Preview. Both DNS 13 and VoiceComputer 13.56.1 are working properly under Windows 10 Technical Preview. I cannot verify that earlier versions of DNS will work properly, but I suspect that DNS 12-12.5-12.5.1 and DMPE 2.2 will because both of those run properly under Windows 8.1.
The bottom line here is, again, caveat emptor. I haven’t had any problems with Windows 10 Technical Preview as of yet, but be advised that you are taking a risk. Installed and configured properly you should not have a problem with Windows 10 Technical Preview. Nevertheless, I need you are certifying or guarantee such. What I have posted here is simply FYI for those who are so inclined to try it.