MultiRecVST3EffectsPath
Path where the MTE will search recursively for VST3 Plugin DLLs.

Since MTE 7.6.1638.0:
The parameter can contain multiple paths, separated by a pipe symbol ("|"). All paths will be recursively searched for VST3 plugins.
Possible values:
Default value: %ProgramFiles(x86)%\Common Files\VST3