Larry, where you been? ST3 is 64 bit and needs a 64 bit host, which BIAB and RB ain't.

"...So you can use your 64-bit VST plugins and VSTi instruments with Band-in-a-Box, using jBridge. Since Band-in-a-Box has built-in support for jBridge, you just use your plugins as you normally would, by selecting 32-bit or 64-bit plugins within Band-in-a-Box"

10 bucks.

http://www.pgmusic.com/jbridge.htm

BIAB – 2025, Reaper (current), i7-12700F Processor, 32GB DDR4-3200MHz RAM, 1TB WD Black NVMe SSD, 2TB WDC Blue SSD, 1TB WD Blue, 2 TB SK NVMe, 6 TB External, Motu Audio Express 6x6