Where is 64bit version of VoiceAttack?

[ExternalCommand]

I have a hefty rig with extra cores and tons of ram to spare. I'm trying to push the limits of complex compound commands but I hit a ceiling with VoiceAttack crashing with out of memory errors at roughly around 1.4GB during profile Saving Edits/Loading the profile. I remember dotnet 32bit had a ~2Gb ceiling for a single object ie List, so its not a surprise. I know there was ways to boost dotnet 32bit versions beyond that limit but can we please have a 64bit version?

https://stackoverflow.com/questions/1087982/single-objects-still-limited-to-2-gb-in-size-in-clr-4-0