yes! it works. now this made me aware that sdb's installed must use the correct version, either in WOW64 or 64-bit mode.
the real problem for me is these all should have been aviailable in 32-bit registry, but to fix a problem with another NSIS issue, I am detecting x64 and disabling file redirection. You actually might remember last year I found an issue where if you install a shortcut to a 32-bit program in C:\Program Files (x86)\ on x64 using NSIS 32-bit, the shortcut icon path might be missing or set incorrectly. Hense icons disappear after certain conditions in Windows are met, or you go to right-click, properties, change icon, and it says the path can't be found. It's because the path on the shortcut is pointed at C:\Program Files\ instead of C:\Program Files (x86). I think something somewhere in NSIS or Windows, something is getting confused in regards to how it handles installing 32-bit apps in a 64-bit environment and handling all the special pathways and different environment versions. But I don't yet know if this actually fixes the shortcut issue, in my earlier testing it worked but I haven't done a thorough examination. Like I would have to test an old version of the code to see if it's stil affected or not.
But when I detect x64 and disable file redirection, it also makes it so that commands I run are done in the 64-bit environment, thus registry keys and whatnot are ending up 64-bit. I will fix this and hopefully not have to worry about this problem again.