Thanks for letting me know. I guess Microsoft moved some things around on their website, but this is the first time in 10 years that it has happened, as far as I know.
I added the option to download the x86 version of SpeechPlatformRuntime.exe directly from our server, but I don't really want to host all of the different language packs for recognition and TTS. I don't even know if I am allowed to distribute these Microsoft files.
As far as I know, everything still works as long as you use the x86 runtime and you use the 32 bit version of VoxCommando.
Maybe it also works if you install the x64 runtime and use the 64 bit version of VoxCommando but I have not tested this.
I recommend just using the 32 bit version as Anniv_D suggested, so that you can also use the DxInput plugin. There is no difference in speed or power between the 32 and 64 bit versions of VoxCommando. The only reason I have created both versions is to open compatibility with different software that might only work with 32 or 64 bit versions. So if you need DxInput you use the 32 bit version. For some other people maybe they have a TTS voice that only works in 64 bit, or wants to create a plugin that uses a .dll that only works in 64 bit.