I found these tidbits at the link Dan posted:
Quote:
a prerequisite is that the host supports VST3, AU or AAX instruments


That quote means it will not work in Band-in-a-Box for Windows or RealBand since neither program accepts VST3.

An AU version of EZKeys2 is available so perhaps the plugin will work with Band-in-a-Box for Mac.

Quote:
the full MIDI content from the legacy version is also included.


Quote:
In May, all previously released EZkeys titles get converted to EKX expansions. Already own one or a few? Don’t worry, all EZkeys sounds will work in EZkeys 2.


Jim Fogle - 2025 BiaB (Build 1128) RB (Build 5) - Ultra+ PAK
DAWs: Cakewalk Sonar - Standalone: Zoom MRS-8
Laptop: i3 Win 10, 8GB ram 500GB HDD
Desktop: i7 Win 11, 12GB ram 256GB SSD, 4 TB HDD
Music at: https://fogle622.wix.com/fogle622-audio-home