x64: AAX, VST3, VST2 | x86: JBridge files
Uninstall previous version then just install!
There are 2 blobs ~2.08 GB in total size which are
needed and provided separately, in order to keep
the installer reasonable. Once you have the 
2 blobs, just place them where they will be
permanently, then start a plug-in of it. It will
ask you where the first file is and that's that.
TCD Note: The blobs are not updated or changed
since v1.2.0 so if you have them already,
you're already good on this front.
In any case, the blobs belong at:
%programdata%\UJAM\SE-Drums
-TCD